The Battle of Sphacteria occurred in 425 BCE during the Peloponnesian War, involving Athenian forces led by Cleon and Demosthenes against a contingent of Spartans stranded on the island of Sphacteria. Following the Battle of Pylos, over 400 Spartan soldiers found themselves isolated on the island after failed peace negotiations. Demosthenes initially attempted to starve the Spartans into submission but faced challenges in effectively blockading the island. As winter approached, Cleon joined Demosthenes with reinforcements, and the Athenians launched a coordinated assault on Sphacteria.The Athenian forces, numbering approximately 800 hoplites, 2,000 light troops, and 8,000 rowers, executed a surprise landing on a poorly defended section of the island. The Spartans, commanded by Epitadas, were caught off guard and suffered significant casualties as the Athenians overwhelmed their positions. The Athenian light troops utilized their mobility to harass the Spartans, who retreated to fortified positions at the northern end of the island. A stalemate ensued until Comon, a Messenian general, successfully maneuvered his troops through difficult terrain to attack the Spartan rear, leading to a breakdown in Spartan morale and their eventual surrender.The surrender of the Spartans, which included 292 survivors, 120 of whom were Spartiates, marked a significant shift in the war's dynamics. The Athenians threatened to execute their prisoners if Sparta invaded Attica, effectively halting annual invasions. This victory bolstered Athenian confidence and prestige, allowing them to pursue a more aggressive strategy in the war. The implications of the battle resonated throughout Greece, challenging the perception of Spartan invincibility and altering the course of the conflict for years to come.

Battle of Sphacteria

Armies and Tactics: Greek Armies during the Peloponnesian Wars

Hoplites: The Greek Phalanx

How Did a Greek Hoplite Go to War?

Ancient Greek State Politics and Diplomacy

The Strategy of the Peloponnesian War

Armies and Tactics: Ancient Greek Navies

Map of the Peloponnesian Wars (431-404 BCE)

Sparta's Shield and Spear: Spartan Military System

The Battle of Sybota occurred in 433 BCE between the naval forces of Corcyra and Corinth, marking a significant escalation in tensions leading to the Peloponnesian War. Corcyra, a former colony of Corinth, sought independence and allied with Athens, which sent ten ships to bolster Corcyra's fleet of 110 ships. Corinth, under the command of Xenoclides, assembled a larger fleet of 150 ships, including allies from Megara and Ambracia. The battle commenced near the Sybota islands, with the Corcyraeans forming their line of battle with Athenian ships on the right, while the Corinthians arranged their forces with Megarians and Ambraciots on the right flank and Corinthians on the left.As the battle unfolded, both sides engaged in close combat, utilizing hoplites, archers, and javelin-throwers, favoring boarding actions over traditional naval tactics. The Corcyraean left wing successfully routed the Corinthian right, pursuing them back to their camp, which was subsequently burned. However, the Corinthian left wing achieved greater success, prompting Athenian intervention to support the Corcyraeans. Despite this, the Corinthians emerged victorious, navigating through the wreckage of defeated ships and killing many survivors, including some of their own allies, while capturing others.Following the battle, the Corcyraeans and Athenians retreated to Corcyra to defend against a Corinthian landing. When the Corinthians approached, they withdrew upon learning that an additional 20 Athenian ships, commanded by Glaucon, were en route. The next day, the presence of these ships deterred the Corinthians from attempting another assault, leading both sides to claim victory: the Corinthians for their initial success in battle and the Corcyraeans for preventing a Corinthian occupation of their island. This confrontation set the stage for further hostilities, including the subsequent Battle of Potidaea.

Battle of Sybota

The Battle of Potidaea occurred in 432 BCE between Athens and a coalition of forces from Corinth and Potidaea, alongside their allies. Athens dispatched a fleet of 30 ships and 1,000 hoplites, commanded by Archestratus, to Potidaea, which had revolted after Athenian demands to dismantle part of its walls and cease accepting Corinthian magistrates. The Athenian forces were initially intended to confront Perdiccas II of Macedon but were redirected to Potidaea after the city allied with him. Corinth responded by sending 1,600 hoplites and 400 light troops, led by Aristeus, to support Potidaea, framing their involvement as voluntary to avoid escalating the conflict.Upon arrival, Archestratus engaged the Macedonian forces instead of the Potidaeans, who had already joined Perdiccas. The battle unfolded with Aristeus' Corinthian contingent managing to defeat a segment of the Athenian line, while the Athenians achieved victories in other areas. Aristeus retreated to Potidaea along the coast, while a reserve force from Olynthus attempted to assist him but was also defeated. The battle resulted in approximately 300 casualties for the Corinthians and Potidaeans and around 150 for the Athenians, including the death of Callias. The Macedonian cavalry did not participate in the fighting.Following the battle, the Athenians maintained a presence outside Potidaea, reinforced by an additional 1,600 hoplites under Phormio. Both sides constructed fortifications, and the Athenians established a naval blockade, isolating Potidaea from maritime support. This siege, which extended until 430/429 BCE, significantly strained Athenian resources, costing up to 420 talents annually. The financial burden, coupled with a plague that affected Athens in the early 420s BCE, contributed to growing discontent with Pericles' leadership and his defensive strategy, which relied on the Long Walls and the limited resources of the Peloponnesians.

Battle of Potidaea

The Battle of Delium occurred in 424 BCE during the Peloponnesian War, involving Athenian forces led by generals Demosthenes and Hippocrates against the Boeotians, allies of the Spartans. Hippocrates arrived in Boeotia with approximately 7,000 hoplites, 1,000 cavalry, and 10,000 Metics, fortifying the temple at Delium. Meanwhile, the Boeotians, commanded by Pagondas of Thebes, assembled a force of about 7,000 hoplites, 1,000 cavalry, 500 peltasts, and 10,000 light troops. After five days of fortification, Hippocrates withdrew most of his forces, leaving 300 cavalry at Delium. Pagondas, recognizing the strategic importance of Delium, urged his troops to engage the Athenians despite their initial hesitation.The battle commenced when the Boeotians charged while Hippocrates was addressing his men. The Boeotians' deployment featured a deeper formation on their right wing, which allowed them to gain an advantage. The Athenian forces, although numerically similar, were arranged in a longer line, which initially allowed them to outflank the Boeotian left. However, as the battle progressed, the Boeotians managed to surround the Athenian left wing, leading to confusion among the Athenian ranks. This confusion was exacerbated by instances of friendly fire, as Athenian hoplites mistakenly engaged one another. Ultimately, the Boeotians, bolstered by cavalry support, defeated the Athenians, who fled the battlefield. Casualty estimates indicate around 1,000 Athenians and 500 Boeotians were killed, including Hippocrates.Following the battle, the Boeotians pursued the retreating Athenians until nightfall. The Athenians regrouped at Delium, where a Boeotian herald demanded their withdrawal from the sacred land. The Athenians claimed the land as theirs in self-defense. Over the next two weeks, the Boeotians received reinforcements, including 2,000 hoplites from Corinth, and employed a novel device to set fire to Delium, ultimately forcing the Athenians to abandon the site. The battle at Delium marked a significant tactical evolution in Greek warfare, showcasing the effective use of deeper formations, cavalry, and light-armed skirmishers, which would influence future military engagements.

Battle of Delium

The Battle of Notium, fought in 406 BCE, marked a significant naval engagement during the Peloponnesian War, resulting in a Spartan victory. The Athenian fleet, initially commanded by Alcibiades, was left under the control of his helmsman, Antiochus, while Alcibiades himself sailed north to assist in the siege of Phocaea. Antiochus, disregarding Alcibiades' explicit orders not to engage the Spartans, attempted to lure the Spartan fleet, commanded by Lysander, into battle by sailing out with a decoy force of 10 triremes. This strategy aimed to replicate the successful tactics used at Cyzicus but ultimately failed due to the different circumstances at Notium.On the day of the battle, Antiochus's decoy force was quickly overwhelmed by a sudden Spartan attack, resulting in the sinking of his ship and his death. The remaining nine triremes retreated towards Notium, where the main Athenian fleet was caught off guard by the full Spartan force. The ensuing conflict led to the capture of 15 Athenian triremes and the sinking of an additional seven. The Spartans, having achieved this unexpected victory, returned to their base at Ephesus, while the Athenians regrouped at Notium.The outcome of the battle had significant political ramifications, leading to the downfall of Alcibiades in Athenian politics. Following the defeat, he returned to Notium to reinforce his fleet, but the damage to his reputation was irreversible. The command of the Athenian fleet shifted to Conon, while Lysander was replaced by Callicratidas. Although Notium did not result in a decisive shift in naval power, it established Lysander as a capable commander and marked the end of Alcibiades' influence, setting the stage for future confrontations in the war.

Battle of Notium

The Battle of Arginusae occurred in 406 BCE near the Arginusae Islands, east of Lesbos, during the Peloponnesian War. The Athenian fleet, commanded by eight strategoi, faced a Spartan fleet led by Callicratidas. The Athenians, numbering approximately 150 triremes, were largely composed of newly constructed ships and inexperienced crews, while the Spartans had around 140 ships, bolstered by their superior experience. The battle was initiated after the Athenians sought to relieve Conon, who was blockaded at Mytilene following a Spartan victory. The Athenian commanders employed innovative tactics, including dividing their fleet into eight autonomous divisions and arranging them in a double line to counter Spartan maneuvers. This strategic approach allowed the Athenians to outflank the Spartans effectively.At dawn on the day of the battle, Callicratidas led his fleet into combat, despite advice to retreat. The engagement began with fierce fighting, and the Athenian tactics proved successful. Callicratidas was killed during the battle, leading to a collapse of the Spartan right wing. The left wing, unable to withstand the Athenian assault, soon followed in retreat. The Spartans suffered significant losses, with around 70 ships lost, while the Athenians lost 25 ships. The battle marked a notable Athenian victory, showcasing their ability to adapt under pressure despite the challenges posed by their inexperienced crews.Following the battle, the Athenian commanders faced a critical decision regarding the rescue of survivors from the disabled ships. However, a storm thwarted their efforts, leading to the drowning of many sailors. This failure incited public outrage in Athens, resulting in the trial and execution of six of the eight generals for their inability to rescue the survivors. Meanwhile, the defeat prompted discussions in Sparta about seeking peace with Athens, but the Athenian assembly rejected the offer. The ongoing conflict would ultimately lead to further Athenian losses, culminating in their defeat at the Battle of Aegospotami less than a year later.

Battle of Arginusae

The Battle of Aegospotami occurred in 405 BCE and marked the final major naval engagement of the Peloponnesian War. The Spartan fleet, commanded by Lysander, decisively defeated the Athenian navy, which was under the command of General Philocles. The Athenian fleet, consisting of approximately 180 ships, had established a base at Sestos, while Lysander's forces were positioned at Abydos. On the fifth day of the battle, Philocles led thirty ships out to confront the Spartans, possibly intending to lure them into a trap. However, the Athenian fleet was caught off guard when Lysander's forces launched a surprise attack while the majority of the Athenian ships were beached and their crews were foraging for food.The outcome was catastrophic for Athens; nearly all of the Athenian ships were captured, with only nine vessels escaping under the command of Conon. Lysander's forces took approximately three to four thousand Athenian sailors prisoner. The captured ships were brought back to Lysander's base at Lampsacus, where he executed Philocles and the majority of the prisoners, citing previous Athenian atrocities against captured sailors. The defeat at Aegospotami effectively severed Athens' maritime supply lines, crippling its ability to import grain and communicate with its empire.Following the battle, Lysander's fleet advanced towards Athens, capturing cities along the way. The Athenian populace, facing starvation due to the loss of their fleet and the Spartan occupation of Deceleia, ultimately surrendered in March 404 BCE. This defeat led to the establishment of a pro-Spartan oligarchic government in Athens, marking the end of nearly three decades of conflict and solidifying Spartan dominance in the Greek world.

Battle of Aegospotami

The siege of Plataea occurred from 429 to 427 BCE during the Peloponnesian War. The conflict began when a contingent of 300 Thebans, led by two generals, infiltrated Plataea under the cover of darkness, hoping to capture the city and eliminate its democratic leaders. However, the Plataeans, realizing the small size of the invading force and taking advantage of the stormy weather, launched a counterattack that resulted in the deaths of over half the Thebans. Some survivors escaped with the aid of a Plataean woman, while others were trapped and killed. A second Theban force intended to support the initial attack was delayed by flooding, and the Plataeans, fearing further incursions, agreed to spare the captured Thebans in exchange for their safety. However, the Plataeans executed the prisoners before receiving a message from Athens instructing them to keep them alive. This incident marked a significant escalation in hostilities between Thebes and Athens.In the summer of 427 BCE, Spartan King Archidamus II led a larger Peloponnesian force to besiege Plataea, destroying its crops and demanding the city's neutrality. The Plataeans, recalling their past alliance with Sparta during the Greco-Persian War, rejected the ultimatum and fortified their defenses. The Spartans attempted various tactics to breach the city’s walls but ultimately constructed a line of fortifications around Plataea and withdrew. Facing dwindling supplies and uncertain prospects for Athenian assistance, the Plataeans devised a plan to escape the siege. On a stormy night, 220 men attempted a breakout, successfully evading capture, although only 212 made it past the Spartan defenses.By the summer of 426 BCE, the remaining Plataeans surrendered due to starvation and lack of hope for rescue. They were promised a fair trial by the Spartans, but upon their surrender, no trial was conducted. The Spartans questioned the prisoners about their service to the Lacedaemonians, and after a heated debate, the Plataeans had to answer negatively. Consequently, over 200 defenders, including 25 Athenians, were executed. The Thebans subsequently razed Plataea, repurposing its materials to construct a shrine to Hera, which became a site of worship long after the war. The destruction of Plataea marked a significant moment in the ongoing conflict between the city-states of Greece.

Siege of Plataea

The Siege of Syracuse, part of the Sicilian Expedition during the Peloponnesian War, unfolded from 415 to 413 BCE, involving Athenian forces against Syracuse, supported by Sparta and Corinth. The Athenian fleet, initially comprising 134 triremes and approximately 5,100 hoplites, landed near Syracuse in the summer of 415 BCE. The Athenians achieved early victories, including the First Battle of Syracuse, where they engaged the Syracusans in a pitched battle, resulting in approximately 260 Syracusan casualties and around 50 Athenian losses. Following this, the Athenians fortified their position and prepared for a prolonged siege, while the Syracusans reorganized their command under Hermocrates and sought assistance from Sparta.In the winter of 415-414 BCE, the Athenians constructed a circumvallation around Syracuse, effectively blockading the city. However, the arrival of Spartan general Gylippus in 414 BCE, with reinforcements including 700 sailors and 1,000 hoplites, shifted the balance. Gylippus successfully countered Athenian advances, and the Syracusans completed their defensive walls, rendering the Athenian siege efforts ineffective. The Athenian command faced internal strife, and despite receiving reinforcements under Demosthenes and Eurymedon in 413 BCE, the situation deteriorated further. A series of naval engagements culminated in the Second Battle of Syracuse on 9 September 413 BCE, where the Athenian fleet suffered significant losses, leading to a breakdown of their forces.By mid-September 413 BCE, the Athenian forces, now severely weakened and demoralized, attempted a retreat. They faced relentless harassment from Syracusan forces, resulting in a catastrophic rout near the Assinarus River, where many Athenian soldiers were killed or captured. Nicias and Demosthenes surrendered, and the remaining Athenian troops were imprisoned under dire conditions. Ultimately, the expedition resulted in the loss of approximately 10,000 Athenian hoplites and the majority of their fleet, marking a significant turning point in the Peloponnesian War and severely impacting Athenian military capabilities and morale.

Siege of Syracuse

The Battle of Spartolos occurred in 429 BCE during the Peloponnesian War, involving Athenian forces led by Xenophon, who commanded 2,000 hoplites and 200 cavalry. The Athenians aimed to suppress the ongoing rebellion in Chalcidice following the fall of Potidaea. Upon reaching Spartolos, they devastated the surrounding crops and sought to negotiate with pro-Athenian factions. However, anti-Athenian elements called for assistance from Olynthus, leading to a combined force from Chalcidice, Spartolos, and Olynthus confronting the Athenians.Initially, the Athenian hoplites gained the upper hand against the local Chalcidian forces, causing them to falter. However, reinforcements from Olynthus revitalized the Chalcidian army, which then employed effective tactics against the Athenian troops. The Chalcidians, now bolstered and utilizing javelins, launched a counterattack that overwhelmed the Athenian forces. As the Athenians attempted to regroup, they faced relentless pursuit from Chalcidian cavalry and light infantry, leading to a breakdown in their formation and a rout.The battle concluded with significant Athenian losses, including the death of all their generals and approximately 430 soldiers. The Athenian contingent, which also included around 500 light troops, suffered casualties estimated between 20% to 25%, a far greater toll than anticipated. This defeat underscored the challenges Athens faced in maintaining control over its empire during the war.

Battle of Spartolos

The Battle of Tanagra occurred in 426 BCE during the Peloponnesian War, involving Athenian forces against a coalition of Tanagran and Theban troops. Following an unsuccessful campaign against the island of Melos, where Athens deployed a fleet of 60 ships and 2,000 hoplites under the command of Nicias, the Athenians redirected their efforts to the mainland. After failing to subdue Melos, the Athenian forces sailed to Oropus on the Boeotian coast, where they disembarked and advanced towards Tanagra.Upon reaching Tanagra, the Athenian contingent, which included reinforcements from the main Athenian army led by Hipponicus and Eurymedon, engaged in plundering the surrounding countryside. The following day, the Athenian forces confronted the combined armies of Tanagra and Thebes. The battle resulted in a decisive victory for the Athenians, who successfully defeated their opponents. Despite this victory, the Athenian forces chose to return to Athens rather than pursue further military objectives in the region.

Battle of Tanagra

The Battle of Amphipolis occurred in 422 BCE during the Peloponnesian War, marking a significant confrontation between Athenian and Spartan forces. Following the capture of Amphipolis by Spartan general Brasidas in 424 BCE, the Athenian general Cleon sought to reclaim the city. Cleon arrived in Thrace with a force comprising 30 ships, 1,200 hoplites, and 300 cavalry, alongside additional troops from Athenian allies. After successfully recapturing the towns of Torone and Scione, Cleon positioned his forces at Eion, while Brasidas, commanding approximately 2,000 hoplites and 300 cavalry, took a defensive stance at Cerdylion, across the Strymon River.As Cleon prepared for an offensive, Brasidas, recognizing the Athenian's reluctance to engage without reinforcements, executed a surprise attack. Cleon, anticipating an assault, began a disorganized retreat, which Brasidas exploited, leading to a decisive Spartan victory. During the battle, Brasidas delivered a motivational speech to his troops, emphasizing the virtues of a good soldier. In the ensuing chaos, both Brasidas and Cleon were killed; Brasidas was mortally wounded but learned of his victory before his death, while Cleon was attacked by Spartan forces under Clearidas. The Athenian army suffered significant casualties, with around 600 soldiers killed during their retreat, while Spartan losses were minimal, totaling only seven men.Following the battle, Brasidas was honored with a burial in the agora of Amphipolis, where he was celebrated as a hero by the local populace. The aftermath of the battle contributed to a shift in the war's dynamics, leading to a reluctance from both Athens and Sparta to continue hostilities, culminating in the signing of the Peace of Nicias in 421 BCE. The battle also had lasting historical significance, as it was recounted by Thucydides, who faced exile for his failure to protect Amphipolis during its initial capture.

Battle of Amphipolis

The second Battle of Hysiae occurred in 417 BCE, involving the armies of Argos and Sparta during the Peloponnesian War. Following the Spartan victory at the Battle of Mantinea in 418 BCE, Spartan King Agis II led an invasion into Argive territory after a pro-Spartan faction in Argos was ousted by an Athenian force commanded by Alcibiades. Although Agis was unable to capture the city of Argos itself, he successfully destroyed the walls that the Argives had begun to extend toward the sea. Subsequently, he targeted the town of Hysiae, which he captured and razed, executing the male population of the town.Thucydides, a contemporary historian who participated in the war, notes that the Spartan forces, accompanied by their allies, marched against Argos during the winter of 418–417 BCE. Despite their efforts, they could not seize Argos but managed to take Hysiae, where they took all male citizens as hostages. These hostages were later executed, marking a significant act of violence in the campaign. Diodorus Siculus, writing in the 1st century BCE, corroborates these events, emphasizing the destruction wrought by the Spartans in the region.After the destruction of Hysiae, the Spartans established a garrison in Orneae before withdrawing from the territory. In response to this occupation, Athens dispatched a naval force consisting of 40 triremes and 1,200 hoplites, which later engaged in the Battle of Orneae to dislodge the Spartan garrison and reclaim the city.

Battle of Hysiae

The Battle of Idomene occurred in 426 BCE during the Peloponnesian War, involving Athenian forces and the Ambracians, who were allied with the Spartans. The Ambracians had dispatched a relief force to support an earlier army that had invaded Amphilochia, unaware that this initial contingent had been defeated and scattered by a coalition of Athenians, Amphilochians, and Acarnanians the previous day. The Ambracians set up camp on the lower of two steep hills, while Athenian commander Demosthenes occupied the higher hill, gaining a significant tactical advantage. Before dawn, while the Ambracians were still asleep, the Athenians launched a surprise attack. The assault resulted in a devastating defeat for the Ambracians, who suffered heavy casualties. Estimates suggest that approximately 1,000 Ambracians were killed over the course of the two battles. Thucydides noted the scale of this disaster, indicating it was one of the most significant losses experienced by a single Hellenic city in a short period during the war. The Athenian forces, benefiting from their strategic positioning and the element of surprise, effectively dismantled the Ambracian camp, leading to a swift and overwhelming victory. The battle underscored the vulnerabilities of the Ambracians and highlighted the effectiveness of Athenian military strategy during this phase of the conflict.

Battle of Idomene

The Battle of Lyncestis occurred in 423 BCE, involving the allied forces of the Lyncestians and Illyrians against the Spartans and Macedonians led by Brasidas and Perdiccas II. The Spartan expedition aimed to support Perdiccas in his conflict against Arrhabaeus, the king of Lyncestis. The combined forces of Brasidas and Perdiccas numbered approximately 3,000 Greek hoplites, supported by Macedonian cavalry and Chalcidian troops, while the Lyncestians were prepared for battle upon their arrival. The two armies faced each other across a plain, with the Lyncestian cavalry initially engaging before their hoplites advanced to join the fray. The Macedonian-Spartan forces successfully routed the Lyncestians, inflicting heavy casualties, while the survivors retreated to the hills.After the initial engagement, Brasidas and Perdiccas awaited the arrival of Illyrian reinforcements, but news soon reached them that the Illyrians had allied with Arrhabaeus instead. This betrayal prompted a sense of urgency, leading to a disorganized retreat by the Macedonians, who feared a larger Illyrian force was advancing. As the Macedonians fled, Brasidas organized his troops into a defensive square, preparing for an attack. He encouraged his soldiers, emphasizing the Illyrians' lack of discipline in battle. When the Illyrians charged, they were met with resistance from Brasidas's men, who managed to repel the attacks while retreating towards open ground.As the retreat progressed, the Illyrians attempted to encircle Brasidas's forces at a narrow pass. Recognizing the threat, Brasidas ordered his 300 elite soldiers to break ranks and seize the high ground from the Illyrians already positioned there. This maneuver allowed the main body of his troops to regroup and continue their retreat with less difficulty. Ultimately, Brasidas reached Arnisa, the first settlement in Perdiccas's territory, while the Macedonian forces faced discontent over their hasty withdrawal. This battle marked a significant moment in the ongoing conflict, deepening the rift between Perdiccas and Brasidas.

Battle of Lyncestis

The first Battle of Mantinea occurred in September 418 BCE during the Peloponnesian War, where Spartan forces, led by King Agis II, engaged an allied army composed of Argives, Athenians, and other city-states. The Spartan army numbered approximately 9,000, including around 3,600 Spartans, 2,000 Brasidian veterans, and 3,000 Arcadians. The opposing coalition had an estimated 8,000 troops, with 4,000 to 5,000 Argives, 2,000 to 3,000 Arcadians, and 1,000 Athenian hoplites. The battle was precipitated by the Argive alliance's advance towards Tegea, which threatened Spartan control over Laconia. Agis, seeking to redeem his reputation after previous setbacks, chose to confront the Argives near Mantinea.As the battle commenced, both sides attempted to outflank each other, leading to chaotic movements among the hoplites. Agis attempted to reinforce his left flank by repositioning units, but this maneuver was not executed effectively. The elite Argive Thousand exploited a gap in the Spartan line, routing the Brasideans and Sciritae. Meanwhile, the Spartan center, composed of Tegeans and regular Spartan troops, successfully routed the Argive and Arcadian forces, causing a significant portion to flee. The Athenian left, while encircled, managed a disciplined retreat thanks to their cavalry, preventing a complete rout. Ultimately, the Spartans achieved a decisive victory, with the Argives suffering heavy losses.The Argive coalition lost approximately 1,100 men, including 700 Argives and Arcadians, 200 Athenians, and 200 Mantineans, while Spartan casualties were around 300. Following the battle, the Spartans negotiated a truce with the Argives, leading to the latter's withdrawal from Orchomenus and a realignment of alliances in the region. This victory significantly bolstered Spartan morale and restored their reputation after previous defeats, marking a pivotal moment in the ongoing conflict.

Battle of Mantinea

The Battle of Megara occurred in 424 BCE between Athenian forces and the Peloponnesian garrison in Megara, an ally of Sparta. The Athenian contingent, numbering approximately 10,000 troops, initially achieved success against the garrison, which was under the command of the Spartan general Brasidas. The Athenians approached Megara during the night, isolating the garrison from the city. However, as dawn broke, the Megarian Democrats, who had planned to open the gates for the Athenians, were thwarted by the oligarchs, leading to a stalemate.As the situation developed, the Athenians launched an attack on the garrison at Nisaia, capturing several Spartans and allowing the Peloponnesians to ransom themselves. The arrival of Brasidas with a larger force shifted the balance, prompting the oligarchs to open the gates to him and his troops. The Athenian forces, recognizing the numerical disadvantage, chose not to engage in battle with the Peloponnesians. Consequently, both the Athenian and Spartan forces withdrew from the city, leaving the Peloponnesians in control of Megara.The battle highlighted the internal divisions within Megara, as the oligarchs regained power with the support of Brasidas, while the Athenian forces retreated. The events of the battle and the subsequent actions of Brasidas would later be used to bolster his reputation in future campaigns.

Battle of Megara

The siege of Melos took place in the summer of 416 BCE during the Peloponnesian War, involving an Athenian force of at least 3,400 troops, which included 1,600 heavy infantry, 300 archers, and 20 mounted archers from Athens, along with 1,500 heavy infantry from other Delian League cities. The Athenian fleet, comprising 38 ships—30 from Athens, 6 from Chios, and 2 from Lesbos—was commanded by generals Cleomedes and Tisias. Despite Melos's ancestral ties to Sparta and its neutral stance in the conflict, Athens demanded that the Melians surrender and pay tribute. When the Melians rejected this ultimatum, the Athenians initiated a siege, establishing a camp on the island and sending emissaries to negotiate. The Melians, however, refused to capitulate.During the siege, the Melians attempted several sorties, managing to capture a portion of the Athenian line at one point, but they could not break the siege. The Athenians, after withdrawing most of their forces to engage in other military actions, later sent reinforcements under Philocrates. The siege continued through the winter, and the Melians ultimately surrendered due to starvation and the overwhelming Athenian military presence. The exact date of surrender is not specified, but it marked the end of the siege.Following the surrender, the Athenians executed the adult male population capable of fighting and enslaved the women and children, subsequently settling 500 Athenian colonists on the island. This brutal outcome was part of Athens' strategy to demonstrate its power and deter potential rebellions among its other territories. The siege and its aftermath are notably recorded in Thucydides' account, which includes the Melian Dialogue, a significant discourse on the nature of power and morality in warfare.

Siege of Melos

In 428 BCE, the city of Mytilene on the island of Lesbos initiated a revolt against the Athenian Empire, seeking to unify the island under its control. The Mytilenean government, in collaboration with Sparta and Boeotia, fortified the city and prepared for war. However, their plans were compromised when the Athenian fleet, alerted to the impending rebellion, blockaded Mytilene by sea. The Mytileneans attempted to negotiate with Athens but were rebuffed, leading to a declaration of war by all cities on Lesbos except Methymna. The Mytileneans launched an attack on the Athenian camp but retreated after a minor victory, allowing the Athenians to establish fortified camps and complete the blockade of the city.In the summer of 427 BCE, the Spartans dispatched a fleet to support the Mytileneans, but delays prevented them from arriving in time to assist. Meanwhile, the Mytileneans, facing dwindling food supplies, attempted a breakout but were met with resistance from their own citizens, who demanded food distribution. Ultimately, the Mytilenean government surrendered to the Athenians, agreeing to terms that included no imprisonment or execution until their case could be presented in Athens. The Athenian commander, Paches, accepted the surrender, and a ship was sent to countermand an earlier order for mass executions of the Mytilenean men, which had been issued during a heated assembly debate in Athens.The Athenian assembly debated the fate of the Mytileneans, with Cleon advocating for harsh punishment while Diodotus argued for a more moderate approach. The assembly initially voted for mass executions but reversed the decision the following day, resulting in the execution of approximately 1,000 identified ringleaders instead. The Athenian fleet, having successfully blockaded Mytilene, returned to Lesbos to quell remaining resistance, while the Spartan fleet, commanded by Alcidas, retreated without engaging the Athenians after learning of Mytilene's surrender.

Mytilenean Revolt

The Battle of Olpae occurred in 426 BCE during the Peloponnesian War, involving Athenian forces led by General Demosthenes and a Spartan contingent commanded by Eurylochus. The conflict began when 3,000 hoplites from Ambracia invaded Amphilochian Argos and occupied the fort at Olpae. In response to the Acarnanians' plea for assistance, Demosthenes arrived with 20 Athenian ships and a contingent of 200 hoplites and 60 archers. Eurylochus, having received support from the Ambraciots, managed to advance his forces undetected past the Acarnanians. After five days of preparation, Demosthenes set an ambush with 400 Acarnanian hoplites, positioning his troops with Athenian and Messenian forces on the right wing and Acarnanians and Amphilochians in the center and left. Eurylochus faced Demosthenes directly with his left wing, comprising Ambraciots and Mantineans.As the battle commenced, Eurylochus quickly outflanked Demosthenes, threatening to encircle him. However, the Acarnanian ambush was executed, resulting in chaos among the opposing forces and the death of Eurylochus. Although the Ambraciots managed to defeat the left wing of the Acarnanians and Amphilochians, they were subsequently routed by the remaining Acarnanian forces. Demosthenes sustained approximately 300 casualties but ultimately achieved victory by nightfall. The following day, Menedaius, who had taken command after Eurylochus's death, sought a truce. Demosthenes agreed to allow only the leaders to escape, aiming to undermine the reputation of the Lacedaemonians among the local Hellenes. While some Ambraciots attempted to flee, the Acarnanians pursued them, resulting in the deaths of around 200 Ambraciots while Menedaius escaped as per the agreement.Simultaneously, Demosthenes learned of a second Ambracian force approaching Olpae, unaware of the previous defeat. He launched a surprise attack at night, disguising his forces as the new Ambracian army, leading to significant casualties among the Ambraciots, with many fleeing to the hills or the sea, where they were captured by the Athenian ships. Over the course of the two days, the Ambraciots suffered approximately 1,000 fatalities. Despite the opportunity to invade Ambracia, Demosthenes refrained from doing so, as his allies feared a strengthened Athenian presence in the region, resulting in a 100-year peace treaty between the Acarnanians and Ambraciots.

Battle of Olpae

The Battle of Orneae occurred in the winter of 417 BCE, involving a Spartan garrison stationed in the city of Orneae following their victory at the Battle of Hysiae. After the Spartans captured and fortified Orneae, they settled exiles from Argos within its walls and left a strong garrison to conduct operations against Argolis. In response to this situation, the Athenians dispatched a naval force consisting of 40 triremes and an army of 1,200 hoplites to assist Argos in reclaiming the city. The combined Argive and Athenian forces launched an assault on Orneae, successfully storming the city and overpowering the Spartan garrison. The engagement resulted in the expulsion of the garrison, and some of the exiled Argives were executed during the conflict. The remaining exiles were driven out of Orneae, marking a significant shift in control of the region.

Battle of Orneae

The Battle of Naupactus occurred in 429 BCE during the Peloponnesian War, involving an Athenian fleet of twenty ships commanded by Phormio and a Peloponnesian fleet of seventy-seven ships led by Cnemus. Following an Athenian victory at Rhium, the Peloponnesians sought to draw the Athenians out from their anchorage at Antirrhium by advancing into the Gulf of Corinth, feigning an attack on the strategic Athenian base at Naupactus. The Athenians, compelled to protect their interests, followed the Peloponnesians eastward along the northern shore of the gulf. The Peloponnesians launched a surprise attack, managing to drive nine Athenian ships ashore while pursuing the remaining vessels toward Naupactus.As the last Athenian ship approached the harbor, it executed a tactical maneuver by circling an anchored merchant vessel and ramming the leading Peloponnesian ship, sinking it. This unexpected action caused confusion among the Peloponnesian fleet, which had been confident of victory. The Athenian ships in the harbor, emboldened by this turn of events, joined the fray, leading to a rout of the Peloponnesians. The Athenians successfully recaptured all but one of their grounded ships and seized six Peloponnesian vessels during the pursuit.The battle concluded with the Peloponnesians retreating to Corinth under the cover of darkness, fearing the arrival of Athenian reinforcements. The Athenians maintained control over Naupactus and secured their naval dominance in the region. The outcome of the battle was significant, as it thwarted Spartan efforts to challenge Athenian power in the Corinthian Gulf and ensured the continued Athenian presence in the area.

Battle of Naupactus

The naval Battle of Pylos occurred in 425 BCE during the Peloponnesian War at the peninsula of Pylos, located in present-day Messenia. An Athenian fleet, initially commanded by Eurymedon and Sophocles, was driven ashore by a storm, leading Demosthenes, an advisor aboard the fleet, to fortify the peninsula. With approximately 600 men, including 90 hoplites, Demosthenes prepared for an impending Spartan assault. The Spartan forces, commanded by King Agis, comprised 43 triremes and a substantial land army. Anticipating the Spartan attack at the weakest point of his defenses, Demosthenes positioned his forces accordingly. The Spartans launched simultaneous assaults from both land and sea, but after a day and a half of fierce fighting, they shifted to a siege strategy, unable to breach the Athenian fortifications.As the Spartans prepared for a prolonged siege, an Athenian fleet of 50 triremes arrived from Zacynthus. The Spartans failed to effectively blockade the harbor, allowing the Athenians to enter and engage the Spartan fleet, which was decisively defeated. This victory enabled the Athenians to trap 420 Spartan hoplites on the nearby island of Sphacteria, including 120 from the elite Spartiate class. The situation prompted a panic within the Spartan government, leading to immediate negotiations for an armistice. The Spartans surrendered their fleet to the Athenians as a guarantee of good conduct while seeking a more permanent peace.Negotiations in Athens, however, did not yield the desired results for the Spartans. Athenian statesman Cleon rejected their proposals, advocating for harsher terms that would further disadvantage Sparta. The failure of these negotiations led to the resumption of hostilities, with the Athenians retaining control of the Spartan ships and preparing to besiege the trapped hoplites on Sphacteria. The outcome of this standoff would later be determined in the subsequent Battle of Sphacteria.

Battle of Pylos

The naval Battle of Eretria occurred in September 411 BCE off the coast of Euboea, involving a confrontation between the Spartan and Athenian fleets. In the spring of the same year, Eretria had expelled Athenian forces from Oropos with assistance from the Boeotians, prompting the Eretrians to seek Spartan support to eliminate Athenian control over Euboea, a vital commercial hub. By late summer 411 BCE, a significant Spartan fleet, commanded by Admiral Hegesandridas, advanced towards Euboea. In response, the Athenians dispatched a squadron led by Thymochares to Eretria to prevent the Eretrians from aligning with Sparta. However, the Eretrians signaled Hegesandridas to launch an attack while the Athenian ships were resupplying in the harbor. The Athenians attempted to retreat but were decisively defeated in the ensuing naval battle, losing 22 ships. Those Athenians who sought refuge in Eretria were killed by the local inhabitants, while only those who fled to the Athenian fort on the Pezonisi Peninsula survived the conflict. The outcome of the battle led to a significant shift in allegiance, with nearly all of Euboea siding with Sparta. This change prompted intense discussions among the Athenians regarding the potential re-integration of the Eretrians, which ultimately resulted in a massacre of the Eretrian population.

Battle of Eretria

The Battle of Abydos occurred on 2 September 411 BCE during the Peloponnesian War, involving a confrontation between the Athenian fleet, commanded by Thrasybulus, and the Spartan fleet under Mindarus. The Spartans, numbering 97 ships, sought to rescue a smaller allied fleet led by Dorieus, which had been stranded at Dardanus after being driven ashore by Athenian forces. The Athenian fleet, consisting of 74 ships, set sail from their base at Sestos to intercept the Spartans as they advanced to assist Dorieus.The battle commenced with both fleets lining up for combat, the Spartans positioned with the Asian shore at their backs. Mindarus commanded the right flank while the Syracusans held the left. The engagement began with a signal from the commanders, leading to an intense naval clash where triremes attempted to ram each other and marines engaged in combat on deck. The battle remained evenly matched until the arrival of Alcibiades, who brought 18 triremes from Samos. His approach was initially misidentified by both sides, but upon raising a red flag, the Athenians recognized their reinforcements. This shift in momentum prompted the Spartan fleet to retreat towards Abydos, suffering significant losses as they were pursued by the Athenians, who captured 30 Spartan ships and reclaimed 15 of their own previously lost at the Battle of Cynossema.The aftermath of the battle saw Mindarus and the remaining Spartan forces return to Abydos to regroup and seek reinforcements from Sparta. The Athenians, despite their victory, faced challenges in maintaining their naval presence due to financial constraints and unrest in Euboea, which required their attention. The battle marked a significant moment in the ongoing conflict, demonstrating the shifting dynamics of naval power in the region.

Battle of Abydos

The naval Battle of Cynossema occurred in 411 BCE during the Second Peloponnesian War, involving an Athenian fleet of 76 ships commanded by Thrasybulus and Thrasyllus against a Spartan fleet of 86 ships led by Mindarus. The battle unfolded in the Hellespont, a critical trade route for Athens, after the Athenians had regrouped at Elaeus following a series of setbacks. The Athenian fleet advanced along the northern shore, while the Spartans launched their attack from the southern shore. As the Athenian left rounded Cynossema, the Spartans executed a plan to outflank the Athenian right and trap their fleet. The Athenian center was quickly driven aground, and the left flank, under Thrasyllus, was isolated and unable to assist.Despite the initial Spartan advantage, the Peloponnesian line began to disintegrate as ships broke formation to pursue individual Athenian vessels. Recognizing the opportunity, Thrasybulus redirected his forces to engage the disorganized Spartan left, achieving a decisive rout. The Athenian right then turned its attention to the Spartan center, which was also caught off guard, leading to a complete collapse of the Peloponnesian forces. Although the narrow straits limited the Athenians' ability to inflict further damage, they captured 21 Spartan ships while losing 15 of their own. The battle concluded with the Athenians establishing a trophy at Cynossema and retreating to Sestos, while the Spartans returned to Abydos.The outcome of the battle, while tactically narrow, had significant implications for Athenian morale and strategy. Following the engagement, the Athenians refitted their ships and sent a detachment to recapture Cyzicus, further bolstering their position. The victory at Cynossema restored confidence among the Athenian populace, allowing them to continue their efforts in the war despite the precarious situation they faced.

Battle of Cynossema

The Battle of Cyzicus occurred in May or June 410 BCE during the Peloponnesian War, involving an Athenian fleet led by generals Alcibiades, Thrasybulus, and Theramenes against a Spartan fleet commanded by Mindarus. The Athenian forces, numbering approximately 86 triremes, had regrouped after previous engagements and entered the Hellespont, establishing a base on the island of Proconnesus. Mindarus, with a fleet estimated at 60 to 80 ships, sought to exploit what he perceived as a weakened Athenian presence. The Athenian fleet divided, with Alcibiades leading a contingent towards Cyzicus while Thrasybulus and Theramenes remained in reserve. Mindarus, believing he had the advantage, pursued Alcibiades, who initially feigned retreat before turning to confront the Spartan fleet, which was then ambushed by the Athenian reinforcements.As the battle unfolded, Alcibiades's forces engaged Mindarus's fleet, leading to a chaotic retreat of the Spartans towards a beach where Persian troops under Pharnabazus were stationed. The Athenians attempted to pull the Spartan ships back to sea using grappling hooks, but faced resistance from the Persian forces. In response, Thrasybulus landed his troops to create a diversion, allowing Theramenes and Chaereas to join the fray. The combined Athenian forces ultimately overwhelmed the Spartans and Persians, resulting in the death of Mindarus and the capture of nearly all Spartan ships, except for those of their Syracusan allies, who burned their vessels to escape.The aftermath of the battle saw the Athenians regain control of the Hellespont, leading to the surrender of Cyzicus without resistance. The defeat demoralized the Spartans, prompting them to seek peace, which the Athenians rejected. Despite this victory, Athens struggled financially to maintain its naval operations, and while they briefly regained influence in the region, they could not capitalize on their success at Cyzicus. The Spartans, with Persian support, quickly rebuilt their fleet, ultimately leading to Athens's defeat in the war by 405 BCE.

Battle of Cyzicus

The Battle of Rhium occurred in the summer of 429 BCE during the Peloponnesian War, involving an Athenian fleet led by Phormio and a Peloponnesian fleet comprising 47 triremes from various states, including commanders Machaon, Isocrates, and Agatharchidas. The Peloponnesians aimed to cross the Gulf of Patras to support an offensive against Acarnania. As they attempted to navigate through the strait between Rhium and Cape Antirrhium, the Athenian fleet, numbering 20 ships, pursued them and engaged in battle in open water. Despite being outnumbered, Phormio employed a tactical maneuver by circling the Peloponnesian ships, which were primarily outfitted as transports rather than combat vessels. The Peloponnesians formed a defensive circle with their prows facing outward, but Phormio's strategy involved tightening the circle around them, forcing the ships closer together. Utilizing his knowledge of local weather patterns, Phormio waited for a favorable wind that would disrupt the Peloponnesian formation. When the wind picked up, it caused chaos among the Peloponnesian crews, leading to fouled oars and confusion. Seizing the opportunity, the Athenian fleet launched a decisive attack, resulting in a rout of the Peloponnesians. The Athenians captured 12 ships and their crews as the Peloponnesians retreated towards the southern shore. This engagement marked a significant victory for the Athenians, demonstrating their naval superiority and tactical prowess in the face of a numerically larger force.

Battle of Rhium

The Battle of Syme occurred in 411 BCE between the naval forces of Sparta and Athens in the southeastern Aegean Sea, near the island of Syme. The Spartans, having formed an alliance with Persia, were led by Astyochus, who had taken command of the Spartan fleet after Therimenes facilitated the alliance and subsequently drowned at sea. Astyochus was tasked with sailing to Cnidus to rendezvous with an additional twenty-seven ships from Caunus, which had been equipped by the Persians. Meanwhile, the Athenian fleet, commanded by Charminus, was stationed at Samos and had received intelligence from the Melians regarding the Spartan approach, prompting Charminus to prepare for engagement at Syme.The two fleets encountered each other during a storm that created poor visibility, resulting in the separation of many Spartan ships from their main formation. Charminus, commanding approximately twenty ships, engaged the Spartan left wing, which was the only visible portion of the enemy fleet. In this initial confrontation, the Athenians managed to sink three Spartan vessels. However, as the remainder of the Spartan fleet regrouped and surrounded the Athenian ships, Charminus faced overwhelming odds. Ultimately, he ordered a retreat to Halicarnassus, having lost six ships in the encounter.Following the battle, the remaining Athenian forces departed from Samos and sailed towards Cnidus. Despite the initial engagement, neither side was willing to pursue further conflict, leading to a cessation of hostilities for the time being.

Battle of Syme

The Battle of Mytilene occurred in 406 BCE between the Athenian and Spartan fleets during the Peloponnesian War. Following the Battle of Notium, Spartan commander Callicratidas assumed control of the Peloponnesian fleet, previously led by Lysander. He initiated a campaign against the Athenian naval commander Conon, raiding Methymna on the island of Lesbos and sending a message to Conon, threatening to end his command of the sea. Shortly thereafter, Callicratidas located Conon's fleet of seventy ships and pursued them towards Mytilene Harbor, where a confrontation ensued, resulting in the loss of thirty Athenian ships.After the initial engagement, Conon managed to beach the remaining forty ships for protection. However, Callicratidas effectively blockaded Conon from the sea and surrounded him on land by transporting troops from Chios and securing the support of the Methymnaeans. In an attempt to break the blockade, Conon dispatched two ships; one aimed for the Hellespont while the other sought open waters. The latter was captured by the Peloponnesians, but the former successfully reached Athens, alerting them to Conon's dire situation. Meanwhile, Callicratidas captured an additional ten Athenian ships that had arrived in the Straits of Mytilene to assist Conon.In response to the news of Conon's predicament, Athens mobilized a fleet of one hundred and ten ships, which, after picking up reinforcements from the Samians and other allies at Samos, grew to one hundred and fifty vessels. Callicratidas, with one hundred and twenty ships, set sail to intercept the Athenian reinforcements, leading to the subsequent major engagement known as the Battle of Arginusae.

Battle of Mytilene

The Peloponnesian War (431-404 BCE) was a major conflict between Athens and Sparta, along with their respective alliances, over dominance of the Greek world. The war, traditionally pided into three phases, ended with a Spartan victory, supported by Persian intervention, and marked a turning point in ancient Greek history. The first phase, the Archidamian War (431-421 BCE), saw Sparta repeatedly invade Attica with its powerful hoplite army, while Athens relied on its Long Walls for defense and used its navy to raid the Peloponnesian coast. Despite these efforts, neither side gained a decisive advantage. The Peace of Nicias was signed in 421 BCE but proved unstable. During this period, notable battles included Sparta's victory at Mantinea in 418 BCE and Athens' ill-fated Sicilian Expedition (415-413 BCE), which resulted in the near-total destruction of the Athenian fleet while attempting to capture Syracuse. The Decelean War (413-404 BCE), the final phase, saw Persia finance a Spartan fleet under Lysander, enabling a series of decisive victories, including at Aegospotamos in 405 BCE. Athens, blockaded and starved, surrendered in 404 BCE, ending its empire. Sparta imposed oligarchic governments on Athens and other former allies, including the oppressive regime of the Thirty Tyrants in Athens. The war devastated Greece. Athens, once the dominant city-state, was left weakened and impoverished, while Sparta emerged as the leading power but struggled to maintain control. The widespread destruction and atrocities changed Greek warfare, transforming it from a formalized affair into a brutal, all-encompassing conflict. The war's end marked the decline of Greece's golden age and sowed the seeds for further instability, including the Corinthian War a decade later. The Peloponnesian War reshaped the Greek world, leaving lasting political, social, and economic consequences.

Battle of Sphacteria

Result/Victory