The Serbian campaign commenced on 28 July 1914, following Austria-Hungary's declaration of war on Serbia. Commanded by General Oskar Potiorek, the Austro-Hungarian forces launched a series of invasions, initially deploying around 500,000 troops, including the 5th and 6th Armies. The Serbian milit...

The Skirmish at Joncherey occurred on 2 August 1914 in the village of Joncherey, located in the Territoire de Belfort, near the French-German border. At approximately 6:00 a.m., Leutnant Albert Mayer led a small German cavalry patrol that crossed into French territory without encountering resista...

The East African campaign during World War I involved a series of military engagements and guerrilla actions primarily in German East Africa, which included present-day Tanzania, Rwanda, and Burundi. The campaign commenced on 31 July 1914, when the German cruiser SMS Königsberg began operations a...

The German invasion of Belgium commenced on 4 August 1914, following Belgium's refusal to grant German forces passage through its territory. The Belgian government had mobilized its military on 31 July, and on 2 August, Germany issued an ultimatum demanding access, which was rejected. German troo...

The Battle of Liège, fought from 5 to 16 August 1914, marked the initial engagement of the German invasion of Belgium during World War I. The city was defended by a series of twelve modern forts, designed to delay the German advance and allow the Belgian Army time to regroup. On 5 August, the Ger...

The Kamerun campaign unfolded in the German colony of Kamerun from August 1914 to March 1916, involving British, French, and Belgian forces against the German military. The campaign commenced on 6 August 1914, when French troops under General Joseph Gaudérique Aymerich advanced from French Equato...

The Togoland campaign occurred from 6 to 26 August 1914, marking the Allied invasion of the German colony of Togoland in West Africa. Following the outbreak of World War I, British and French forces mobilized from the neighboring colonies of Gold Coast and Dahomey. The German colonial forces, num...

The Battle of the Frontiers, fought from 7 to 24 August 1914, involved a series of engagements along the eastern frontier of France and in southern Belgium, marking the initial confrontations of World War I. The French First Army, under General Auguste Dubail, launched its first offensive on 7 Au...

At the dawn of World War I, France launched its first major offensive in what became the Battle of Mulhouse, an attempt to reclaim Alsace, lost to Germany after the Franco-Prussian War of 1870–1871. On 7 August 1914, French forces, under General Louis Bonneau, advanced into Alsace. After fi...

The Atlantic U-boat campaign of World War I commenced on 6 August 1914, shortly after Britain declared war on Germany. German U-boats, including U-5 through U-18, launched their first patrols from Heligoland, targeting Royal Navy warships in the North Sea. On 8 August, U-15 attempted to torpedo B...

The Battle of Halen occurred on 12 August 1914, involving German forces under General Georg von der Marwitz and Belgian troops led by Lieutenant-General Léon De Witte. The battle was fought near the small market town of Halen, which was strategically located on the Gete River and served as a crit...

The Battle of Lorraine occurred from 14 August to 7 September 1914, as part of the early engagements on the Western Front during World War I. The French First Army, commanded by General Auguste Dubail, initiated an offensive on 14 August, advancing with two corps into the Vosges and two corps tow...

The Battle of Cer occurred from 15 to 24 August 1914, marking a significant military engagement between Austria-Hungary and Serbia during the First World War. The conflict began late on 15 August when elements of the Serbian 1st Combined Division encountered Austro-Hungarian outposts on the slope...

The Battle of Dinant occurred from 15 to 23 August 1914, during the German invasion of Belgium in World War I. On 15 August, German forces from the 3rd and 4th Cavalry divisions, supported by five battalions of Jäger and artillery, launched an attack on Dinant, which was defended by the French I ...

The Russian invasion of East Prussia commenced in early August 1914, with the First Army, led by General Paul von Rennenkampf, and the Second Army, commanded by General Alexander Samsonov, entering the region between August 7 and 9. The Russian forces totaled approximately 6.5 infantry divisions ...

The Battle of Stallupönen occurred on August 17, 1914, between Russian and German forces during the early stages of World War I on the Eastern Front. The German Eighth Army, commanded by Hermann von François, faced the Russian First Army, led by Paul von Rennenkampf. The Russians, comprising four...

The Battle of Gumbinnen commenced on 20 August 1914, when German forces launched an offensive against the Russian First Army, commanded by Paul von Rennenkampf. The German strategy was influenced by the belief that the Russian forces were not as formidable as they appeared, and that a swift attac...

The Siege of Namur commenced on 20 August 1914, when the German 2nd Army, under the command of General Karl von Bülow, arrived to besiege the fortified city of Namur, defended by approximately 37,000 troops from the Belgian 4th Division, led by General Augustin Michel. The German forces, having g...

The Battle of the Ardennes occurred from 21 to 23 August 1914, as part of the larger Battle of the Frontiers during World War I. The German forces, comprising the 4th Army under Albrecht, Duke of Württemberg, and the 5th Army led by Crown Prince Wilhelm, engaged the French armies in a series of c...

The Battle of Charleroi, fought on 21 August 1914, involved the French Fifth Army, commanded by General Charles Lanrezac, and the German 2nd and 3rd Armies, led by General Karl von Bülow and Colonel-General Max von Hausen, respectively. The French had concentrated 15 divisions along a 40 km front...

The Battle of Jaroslawice occurred on August 21, 1914, between the Austria-Hungary 4th Cavalry Division, commanded by Edmund Ritter von Zaremba, and the Russian 10th Cavalry Division, led by General Fyodor Arturovich Keller. The engagement took place in the vicinity of the villages of Jaroslawice...

The Battle of Chra occurred on 22 August 1914, during the Togoland Campaign of World War I, involving British and French forces against German paramilitary police in the village of Chra, near the Khra River. The German defenders, numbering approximately 440 troops, fortified their position by min...

The Battle of Mons occurred from 23 to 24 August 1914, marking the first significant engagement of the British Expeditionary Force (BEF) during World War I. The BEF, consisting of approximately 80,000 professional soldiers, was positioned along the Mons–Condé Canal to defend against the advancing...

The Battle of Tannenberg occurred from 23 to 30 August 1914, involving the German Eighth Army and the Russian Second Army. The German forces, under the command of General Paul von Hindenburg and his chief of staff, Major General Erich Ludendorff, executed rapid rail movements to concentrate their...

The Battle of Galicia, fought between 23 August and 11 September 1914, marked a significant confrontation between Russian and Austro-Hungarian forces during World War I. The Austro-Hungarian 1st Army, commanded by Viktor Dankl, advanced towards Lublin, engaging the Russian 4th Army led by Baron A...

The Battle of Kraśnik commenced on August 23, 1914, in the province of Galicia, present-day Poland, and concluded two days later. The Austro-Hungarian First Army, commanded by General Viktor Dankl, engaged the Russian Fourth Army under Baron Salza. The Austro-Hungarians fielded approximately ten ...

The Great Retreat, also known as the retreat from Mons, occurred from late August to early September 1914, involving the British Expeditionary Force (BEF) and the French Fifth Army. Following defeats at the Battle of Charleroi on 21 August and the Battle of Mons on 23 August, the Allied forces be...

The Siege of Maubeuge occurred from 24 August to 7 September 1914, involving the Entrenched Camp of Maubeuge, which was strategically significant at the onset of World War I. The French garrison, commanded by Brigadier-General Joseph Fournier, consisted of approximately 48,000 troops, including i...

The Battle of Tepe occurred on 25 August 1914, marking the first engagement between German and British forces during the Kamerun campaign of World War I. Following Britain's declaration of war against the German Empire on 4 August, a mounted detachment from the West African Frontier Force departe...

The Battle of Le Cateau occurred on 26 August 1914, as the British Expeditionary Force (BEF) and the French Fifth Army retreated following defeats at the Battle of Charleroi and the Battle of Mons. The British II Corps, commanded by General Sir Horace Smith-Dorrien, faced the advancing German for...

The Battle of Komarów, fought from 26 to 30 August 1914, involved Austro-Hungarian forces under the command of Franz Graf Conrad von Hötzendorf and Russian troops led by Nikolai Iudovich Ivanov. The Austro-Hungarian First Army, commanded by Dankl, included the X Corps and the Fourth Army's II Cor...

The Battle of Gnila Lipa occurred from 29 to 30 August 1914, during World War I, as the Imperial Russian Army launched an offensive into Galicia against the Austro-Hungarian Army. The Russian forces comprised two armies: Nikolai Ruzsky's Third Army, which included the IX, X, XI, and XXI Corps wit...

The Siege of Mora, also known as the Siege of Moraberg, occurred from August 1914 to February 1916 during the Kamerun campaign of World War I. The German fort at Mora, located approximately 100 miles south of Lake Chad, was initially defended by a garrison of 14 European and 125 African Schutztru...

The Siege of Tsingtao, which took place from 27 August to 7 November 1914, involved a coordinated attack by Japanese and British forces against the German-held port of Qingdao in Jiaozhou Bay during World War I. The Japanese Imperial Navy, under Vice-Admiral Sadakichi Kato, initiated a blockade w...

The Battle of Heligoland Bight occurred on 28 August 1914, marking the first significant naval engagement between the United Kingdom and Germany during World War I. The British Grand Fleet, under Admiral Sir John Jellicoe, was positioned in the northern North Sea, while the German High Seas Fleet...

The Battle of St. Quentin, also known as the First Battle of Guise, occurred from 29 to 30 August 1914 during World War I. Following a retreat from Le Cateau, the French Fifth Army, commanded by General Charles Lanrezac, was tasked by Commander-in-Chief Joseph Joffre to hold the German advance. O...

The First Battle of the Masurian Lakes occurred from 2 to 16 September 1914, as part of the German offensive against the Russian First and Tenth Armies during World War I. Following the German victory at the Battle of Tannenberg, the German Eighth Army, commanded by Generals Paul von Hindenburg a...

The Battle of Rawa, fought from 3 to 11 September 1914, was a significant engagement during World War I between the forces of Austria-Hungary and Russia, forming part of the larger Battle of Galicia. The Austro-Hungarian Fourth Army, commanded by General Hermann von Auffenberg, was positioned bet...

The First Battle of the Marne occurred from 5 to 12 September 1914, as the German army advanced into France with the intent of capturing Paris and defeating the French and British forces. Following initial successes in August, including victories at Mons and the Frontiers, the Germans pursued the...

The Srem Offensive commenced on September 6, 1914, as the Serbian 1st Army, under the command of Field Marshal Radomir Putnik, launched an attack against Austro-Hungarian forces in the Srem region. This offensive was initiated under pressure from the Entente powers, particularly Russia and France...

The German Caucasus Expedition, which commenced in 1915, aimed to support the Ottoman Empire against Russian forces in the Caucasus region. The expedition was led by General Otto von Emmich and involved approximately 20,000 German troops, alongside Ottoman forces. The campaign included significan...

The Battle of Nsanakong occurred on 6 September 1914 during the Kamerun campaign of World War I, following the British occupation of the town on 30 August 1914. At approximately 2:00 AM, German forces launched a surprise attack on the British defenders, who were equipped with limited ammunition. ...

The Battle of the Drina occurred in September 1914, involving Serbian and Austro-Hungarian forces near Loznica, Serbia, during the First Serbian campaign of World War I. Following a failed invasion of Serbia that resulted in 40,000 Austro-Hungarian casualties, General Oskar Potiorek initiated a r...

The Battle of Bita Paka occurred on 11 September 1914, near Kabakaul on New Britain, as part of the Australian Naval and Military Expeditionary Force's (AN&MEF) campaign to capture German New Guinea following the outbreak of World War I. The primary objective was to seize a strategically signific...

The Battle of Augustów, also known as the First Augustow Operation, occurred from 12 to 18 September 1914 between the Russian Empire and the German Empire on the Eastern Front during World War I. Following the retreat of the Russian 2nd Army after the Battle of Tannenberg, Russian forces establis...

The First Battle of the Aisne occurred from 12 to 15 September 1914, as the Allies pursued the retreating German First Army, commanded by Alexander von Kluck, and the Second Army, led by Karl von Bülow, following the First Battle of the Marne. The Germans established a strong defensive position a...

The South West Africa campaign commenced with the mobilization of South African forces along the border of German South West Africa in early September 1914, following the outbreak of World War I. Prime Minister Louis Botha, who took command of the Union Defence Force (UDF), led an initial invasio...

The Siege of Przemyśl, which began on 16 September 1914, marked the longest siege in Europe during World War I and the second largest of the conflict. The fortress-town, located on the River San in present-day southeastern Poland, was defended by an Austro-Hungarian garrison of approximately 127,...

The Battle of Zanzibar occurred on 20 September 1914, involving the German cruiser SMS Königsberg and the British protected cruiser HMS Pegasus. Commander Max Looff of Königsberg, while coaling in the Rufiji Delta, learned that Pegasus was undergoing repairs in Zanzibar Harbour. With Königsberg r...

The Battle of Ukoko occurred on 21 September 1914 during the Kamerun campaign of World War I, involving French and German forces in the region of Ukoko, present-day Cocobeach, Gabon. Following the outbreak of war, French and British objectives included securing the coastal areas of Kamerun to pre...

The Battle of the San River, also referred to as the Second Battle of Galicia, took place in October 1914 as part of the Eastern Front operations during World War I. The battle commenced with an offensive by the Austro-Hungarian forces against the Russian positions held by General Aleksei Brusilo...

The Battle of Albert commenced on 25 September 1914, as part of the 'Race to the Sea' during World War I. The French Second Army, under General Noël de Castelnau and directed by General Joseph Joffre, aimed to outflank the German forces. On the initial day of battle, the Second Army advanced east...

The Battle of Sandfontein occurred on 26 September 1914, involving the Union Defence Force (UDF) of South Africa and the German Empire during the South West Africa Campaign of World War I. The German forces, commanded by Joachim von Heydebreck, comprised approximately 1,700 troops, ten artillery ...

In late September 1914, the Russian Northwestern Front, under the command of General Nikolai Ruzsky, initiated an offensive aimed at capturing East Prussia following earlier defeats. The Russian forces, comprising the 1st and 10th Armies, significantly outnumbered the German 8th Army, with approx...

The Siege of Antwerp commenced on 28 September 1914, when German forces began a bombardment of the fortified city, which was defended by approximately 80,000 Belgian troops and the British Royal Naval Division. The city was encircled by a series of forts known as the National Redoubt, and the Ger...

The Battle of the Vistula River, occurring from 28 September to 25 October 1914, marked a significant engagement between Russian forces and the German and Austro-Hungarian armies during World War I. By mid-September, the Russian Imperial Army, under Grand Duke Nicholas, had amassed approximately ...

The Battle of Arras, occurring from 1 to 4 October 1914, was a significant engagement during World War I, marked by reciprocal attempts between the French and German armies to outflank each other amid the 'Race to the Sea.' On 1 October, the French Tenth Army, commanded by General Louis Maud'huy,...

The Battle of the Rufiji Delta occurred between October 1914 and July 1915 in German East Africa, involving the German light cruiser SMS Königsberg and a contingent of British warships. Following an engine failure after the sinking of the British cruiser HMS Pegasus, Königsberg took refuge in the...

The Battle of Messines occurred from 12 October to 2 November 1914, involving the German Empire against the British Empire and France during the Race to the Sea. The conflict was characterized by reciprocal attempts to outflank the opposing forces, with the British Expeditionary Force (BEF) and F...

The Battle of Armentières, also known as the Battle of Lille, occurred from 13 October to 2 November 1914, involving German and Franco-British forces in northern France. The British Expeditionary Force (BEF), comprising the 4th and 6th Divisions, advanced from the Aisne front, aiming to push Germ...

The Battle of the Yser occurred from 16 October to 31 October 1914, along a 35 km stretch of the Yser River in Belgium, between Nieuwpoort and Diksmuide. The Belgian Army, under the command of Colonel Alphonse Jacques, defended the town of Diksmuide against a German offensive led by the 4th Army,...

The German campaign in Angola unfolded between October 1914 and July 1915, prior to the formal declaration of war between Germany and Portugal on 9 March 1916. Tensions escalated as Portuguese forces, bolstered by a military expedition led by Lieutenant-Colonel Alves Roçadas, arrived at Moçâmedes...

The First Battle of Ypres, fought from 19 October to 22 November 1914, was a significant engagement on the Western Front during World War I, involving German, British, French, and Belgian forces. The battle was part of the broader First Battle of Flanders, which spanned from Arras in France to Ni...

The Battle of Laski and Anielin occurred from October 22 to 26, 1914, as part of the Ivangorod Operation during World War I. The 1st Brigade of the Polish Legions, under the command of Józef Piłsudski, engaged the Imperial Russian Army near the villages of Anielin and Laski. The Austro-Hungarian ...

On 28 October 1914, the Battle of Penang occurred in the Penang Strait, involving the German cruiser SMS Emden, commanded by Lieutenant Commander Karl von Müller. At approximately 04:30, the Emden entered the harbor near George Town, having disguised itself to resemble the British light cruiser H...

The Battle of Mołotków occurred on October 29, 1914, near the village of Mołotków in Austrian Galicia, present-day Ukraine. The Polish forces, comprising the 2nd and 3rd Infantry Regiments of the Polish Legions, were under the command of General Karol Durski-Trzaska. They engaged the Russian Impe...

The Caucasus campaign involved military engagements between the Russian Empire and the Ottoman Empire, extending from November 1, 1914, when Russian forces invaded Turkish Armenia, to March 3, 1918, when the Treaty of Brest-Litovsk was signed. The Russian Caucasus Army, initially comprising aroun...

On 29 October 1914, the Ottoman Navy, under the command of German Admiral Wilhelm Souchon, launched a naval raid against Russian ports in the Black Sea, marking the Ottoman Empire's entry into World War I. The operation was orchestrated by Ottoman War Minister Enver Pasha, who sought to provoke R...

The Battle of Coronel occurred on 1 November 1914, off the coast of central Chile, where the Imperial German Navy, led by Vice-Admiral Graf Maximilian von Spee, engaged a British squadron commanded by Rear-Admiral Sir Christopher Cradock. The German East Asia Squadron comprised five modern vessel...

The Bergmann Offensive, initiated on 2 November 1914, marked the first engagement of the Caucasus Campaign during World War I, following the Russian capture of Bayazet. General Georgy Bergmann commanded the Russian 1st Caucasus Army Corps, which included approximately 45,000 infantry, 4,000 caval...

The Battle of Tanga, occurring from 3 to 5 November 1914, involved an invasion of the port city of Tanga in German East Africa by the British Indian Expeditionary Force 'B,' commanded by Major-General Arthur Aitken. The British aimed to capture Tanga, a strategic port and terminal for the Usambar...

The Battle of Kilimanjaro occurred on 3 November 1914 near Longido in German East Africa, marking an early engagement in the East African Campaign of World War I. The British Indian Army's Indian Expeditionary Force 'C,' comprising approximately 4,000 troops under Brigadier-General J. M. Stewart,...

The Mesopotamian campaign during World War I commenced with the British Fao Landing on 6 November 1914, aimed at securing oil fields in Persia and countering Ottoman influence. The British Indian Expeditionary Force D, led by Lieutenant General Arthur Barrett, successfully captured the fort at Fa...

The Fao Landing took place from 6 to 8 November 1914, when British forces launched an assault on the Ottoman stronghold of Fao, a strategic location on the Persian Gulf coast. The operation was executed by Indian Expeditionary Force D, which included the 6th (Poona) Division under the command of ...

The Battle of Cocos took place on 9 November 1914, when the Australian light cruiser HMAS Sydney, commanded by Captain John Glossop, engaged the German light cruiser SMS Emden, under Captain Karl von Müller, near Direction Island in the Cocos (Keeling) Islands. Emden had been operating as a comme...

The invasion of Cheikh Said occurred on 10 November 1914, as part of the British campaign against Ottoman forces in the region. Following Britain's declaration of war on the Ottoman Empire on 5 November 1914, the Ottomans aimed to capture the British crown colony of Aden, supported by local Arab ...

The Battle of Łódź occurred from 11 November to 6 December 1914, near the city of Łódź in Poland, involving German forces from the Eighth and Ninth Armies, the Austrian First Army, and Russian troops from the First, Second, and Fifth Armies. The German Ninth Army, commanded by General August von ...

The Battle of Basra occurred from November 11 to November 22, 1914, as British forces engaged Ottoman troops south of Basra, in present-day Iraq. Following the British capture of Fao, the Ottomans began to concentrate their forces in Basra, viewing the completion of the Berlin–Baghdad railway as ...

The Battle of Kolubara took place between 16 November and 15 December 1914, during World War I, involving the Austro-Hungarian and Serbian armies. The Austro-Hungarians, commanded by Oskar Potiorek, initiated their assault on 16 November after advancing to the Kolubara River, having previously ca...

The Battle of Cape Sarych occurred on 18 November 1914, involving a Russian naval force led by Vice Admiral Andrei Eberhardt, which included the pre-dreadnought battleships Evstafi (the flagship), Ioann Zlatoust, Panteleimon, Tri Sviatitelya, and Rostislav, supported by three cruisers and 13 dest...

Winter operations from 23 November 1914 to 6 February 1915 involved military engagements on the Western Front, primarily in Flanders, where the British Expeditionary Force (BEF) faced German forces. Following the inconclusive First Battle of Ypres, both sides fortified their positions, leading to...

The Battle of Limanowa-Łapanów occurred from 1 December to 13 December 1914, involving the Austro-Hungarian Army and the Russian Army near Limanowa, approximately 40 kilometers southeast of Kraków. The Austro-Hungarian high command, led by Archduke Joseph Ferdinand and General Conrad von Hötzendo...

The Persian campaign during World War I involved military engagements between the Ottoman Empire, British Empire, and Russian Empire in neutral Qajar Iran, commencing in December 1914 and concluding with the Armistice of Mudros on 30 October 1918. The conflict primarily unfolded in northern Irani...

The Battle of Qurna took place from 3 to 9 December 1914, involving British forces and Ottoman troops who had retreated from Basra following their defeat at the Battle of Basra. The Ottomans, numbering approximately 1,000 men and commanded by Colonel Subhi Bey, established a defensive position in...

The Battle of the Falkland Islands occurred on 8 December 1914, involving a naval engagement between the British Royal Navy and the Imperial German Navy in the South Atlantic. Following their defeat at the Battle of Coronel on 1 November, the British sought to eliminate the German cruiser squadro...

The Battle of the Four Rivers, fought in December 1914, involved significant military engagements between German and Russian forces in Poland. The German side, comprising approximately 600,000 troops, included the 9th Army with 305,576 men, while the Russian forces totaled around 500,000, with ea...

The Raid on Scarborough, Hartlepool, and Whitby occurred on 16 December 1914, when the Imperial German Navy targeted the British ports of Scarborough, Hartlepool, and Whitby. The operation was led by Rear Admiral Franz von Hipper, commanding a force that included the battlecruisers SMS Seydlitz, ...

The First Battle of Champagne occurred from 20 December 1914 to 17 March 1915, involving the French Fourth Army and the German 3rd Army in the Champagne region of France. This battle was part of a broader French strategy aimed at attacking the Noyon Salient, a significant bulge in the Western Fro...

The Battle of Sarikamish occurred between December 22, 1914, and January 17, 1915, as part of the Caucasus Campaign during World War I, involving the Russian and Ottoman Empires. The Ottoman 3rd Army, commanded by Hasan Izzet Pasha and later by Enver Pasha, launched an offensive with approximatel...

The Battle of Ardahan occurred from 25 December 1914 to 18 January 1915, as part of an Ottoman military operation aimed at capturing the city of Ardahan and severing Russian supply lines to the Sarikamish-Kars region. Commanded by German Lieutenant Colonel Christian August Stange, the Stange Bey ...