Dates |
Events |
|
June 28 |
Assassination of Archduke Franz Ferdinand of Austria, heir to the Austro-Hungarian throne, who was killed in Sarajevo along with his wife Duchess Sophie by Bosnian Serb Gavrilo Princip. |
Details |
July 5 |
Austria-Hungary seeks German support for a war against Serbia in case of Russian militarism. Germany gives assurances of support. |
|
July 23 |
Austria-Hungary sends an ultimatum to Serbia. The Serbian response is seen as unsatisfactory. |
Details |
July 28 |
Austria-Hungary declares war on Serbia. Russia mobilizes. |
|
The Netherlands declare neutrality. |
|
July 31 |
Germany warns Russia to stop mobilizing. Russia says mobilization is against Austria-Hungary only. |
|
August 1 |
Germany declares war on Russia. |
|
Italy declares its neutrality. |
|
Denmark declares its neutrality.[6] |
|
Germany and the Ottoman Empire sign a secret alliance treaty.[7] |
Details |
August 2 |
Germany invades Luxembourg. |
Details |
Skirmish at Joncherey, first military action on the Western Front |
|
August 2–26 |
Germany besieges and captures fortified Longwy "the iron gate to Paris" near the Luxembourg border, opening France to mass German invasion |
|
August 3 |
Germany declares war on France. Belgium denies permission for German forces to pass through to the French border. |
|
Switzerland declares its neutrality.[9] |
|
August 4 |
Germany invades Belgium[10] to outflank the French army. |
Details |
Britain protests the violation of Belgian neutrality, guaranteed by a treaty;
German Chancellor replies that the treaty is just a chiffon de papier (a scrap of paper).
The United Kingdom declares war on Germany.[11] |
Details |
Liberia declares war on Germany.[12] |
|
The United States declares neutrality. |
|
August 4–16 |
The Germans besiege and then capture the fortresses of Liège, Belgium. |
Details |
August 5 |
First shot fired by Allied troops – German Steamer SS Pfalz surrenders after being fired on by Fort Nepean, south of Melbourne, Australia[13] |
|
Montenegro declares war on Austria-Hungary. |
|
The Ottoman Empire closes the Dardanelles. |
|
August 6 |
Austria-Hungary declares war on Russia. |
|
Serbia declares war on Germany. |
|
August 7 |
The British Expeditionary Force arrives in France. |
Details |
August 7 – September 13 |
Battle of the Frontiers. The Germans obtain a victory against the British Expeditionary Force and France's Fifth Army. |
|
August 7–10 |
Battle of Mulhouse, a phase of the Battle of the Frontiers. |
|
August 9 |
Montenegro declares war on Germany. |
|
The Togoland Campaign begins. |
|
August 11 |
France declares war on Austria-Hungary. |
|
August 12 |
The United Kingdom declares war on Austria-Hungary. |
|
Battle of Haelen, a phase of the Battle of the Frontiers. |
|
August 14–25 |
Battle of Lorraine, a phase of the Battle of the Frontiers. |
|
August 16–20 |
The Serbs defeat the Austro-Hungarians at the Battle of Cer. |
Details |
August 17 |
The Russian army enters East Prussia. Battle of Stalluponen. |
Details |
August 20 |
The Germans attack the Russians in East Prussia, the Battle of Gumbinnen. The attack is a failure in addition to being a deviation from the Schlieffen Plan. |
Details |
The Germans occupy Brussels. |
|
Battle of Morhange, a phase of the Battle of Lorraine. |
|
Battle of Sarrebourg, a phase of the Battle of Lorraine. |
|
August 21 |
Battle of Charleroi, a phase of the Battle of the Frontiers. |
|
August 21–23 |
Battle of the Ardennes, a phase of the Battle of the Frontiers. |
|
August 22 |
Austria-Hungary declares war on Belgium. |
|
August 23 |
Japan declares war on Germany. |
Details |
Battle of Mons, a phase of the Battle of the Frontiers. |
|
August 23–30 |
Battle of Tannenberg: the Russian army undergoes a heavy defeat by the Germans. |
Details |
August 23 – September 11 |
Battle of Lemberg. The Russians capture Lviv. |
Details |
August 23–25 |
Battle of Kraśnik, a phase of the Battle of Lemberg. The Austro-Hungarian First Army defeats the Russian Fourth Army. |
Details |
August 24 |
Action of Elouges. |
|
Battle of the Mortagne, a phase of the Battle of Lorraine. |
|
August 24 – September 7 |
The Germans besiege and capture the Maubeuge Fortress. |
Details |
August 24 – September 28 |
The Allied Great Retreat to the River Marne. |
|
August 25 |
Japan declares war on Austria-Hungary. |
|
August 26 |
British and French forces conquer Togoland, a German protectorate in West Africa. |
Details |
Battle of Le Grand Fayt. |
|
August 26–27 |
Battle of Le Cateau. Allied retreat. |
Details |
August 26–30 |
Battle of Gnila Lipa, a phase of the Battle of Lemberg. |
|
August 26 – September 2 |
Battle of Komarow, part of the Battle of Lemberg. |
Details |
August 27 |
Battle of Étreux. |
Details |
August 27 – November 7 |
Battle of Tsingtao: British and Japanese forces capture the German-controlled port of Tsingtao in China. |
Details |
August 28 |
The Royal Navy wins the First Battle of Heligoland Bight, North Sea. |
Details |
August 29–30 |
Battle of Saint Quentin, aka Battle of Guise. Orderly Allied retreat. |
Details |
August 30 |
New Zealand occupies German Samoa (later Western Samoa). |
Details |
September 1 |
Action at Nery |
Details |
September 2–11 |
Austro-Hungarian defeat at the Battle of Rava Russka, a phase of the Battle of Lemberg. |
Details |
September 4–13 |
Battle of Grand Couronne, a phase of the Battle of the Frontiers. |
|
September 5–12 |
First Battle of the Marne. The German advance on Paris is halted, marking the failure of the Schlieffen Plan. |
Details |
Battle of the Ourcq, a phase of the First Battle of the Marne. |
|
Battle of the Two Morins. |
|
September 6–12 |
Battle of the Marshes of Saint-Gond, a phase of the First Battle of the Marne. |
|
Battle of Vitry, a phase of the First Battle of the Marne. |
|
Battle of Revigny, a phase of the First Battle of the Marne. |
|
September 6 – October 4 |
Battle of Drina. |
|
September 7–14 |
First Battle of the Masurian Lakes: The Russian Army of the Neman withdraws from East Prussia with heavy casualties. |
Details |
September 9 |
Theobald von Bethmann Hollweg lays out Germany's war aims. |
Details |
September 11 |
Australian forces occupy German New Guinea. |
Details |
September 13 |
Troops from South Africa begin invading German South-West Africa. |
Details |
September 13–28 |
The First Battle of the Aisne ends in a substantial draw. The Race to the Sea begins. |
Details |
September 14 |
Erich von Falkenhayn replaces Helmuth von Moltke the Younger as German Chief of Staff. |
Details |
September 19 – October 11 |
Battle of Flirey |
|
September 20 |
Battle of Zanzibar, German naval victory. |
|
September 22 |
Bombardment of Papeete |
|
German Light Cruiser Emden attacks Madras |
Details |
September 22–26 |
First Battle of Picardy. |
|
September 24 |
The Siege of Przemyśl begins |
Details |
September 25–29 |
First Battle of Albert |
Details |
September 28 – October 10 |
The Germans besiege and capture Antwerp, Belgium. |
Details |
September 29 – October 31 |
Battle of the Vistula River, aka Battle of Warsaw. |
Details |
October–July 11, 1915 |
Battle of Rufiji Delta, German cruiser Königsberg destroyed. |
|
October 1–4 |
First Battle of Arras. |
Details |
October 9 – November 1 |
Central powers control Belgrade. |
Details |
October 10 – November 2 |
Battle of La Bassee. |
|
October 12 – November 2 |
First Battle of Messines. |
Details |
October 13 – November 2 |
Battle of Armentieres. |
|
October 16–31 |
Battle of the Yser. French and Belgian forces secure the coastline of Belgium. |
Details |
October 19 – November 22 |
The First Battle of Ypres ends the Race to the Sea. The Germans are prevented from reaching Calais and Dunkirk. |
Details |
November 1 |
Russia declares war on the Ottoman Empire. |
|
Battle of Coronel. Von Spee's German cruiser squadron defeats a Royal Navy squadron under Christopher Cradock. |
Details |
November 2 |
The United Kingdom begins the naval blockade of Germany. |
Details |
November 2–16 |
Bergmann Offensive, first military engagement in the Caucuses of the First World War. |
|
November 3 |
Montenegro declares war on the Ottoman Empire. |
|
Battle of Kilimanjaro. |
|
November 3–5 |
Von Lettow-Vorbeck's German colonial forces defeat the British at the Battle of Tanga, German East Africa. |
Details |
November 5 |
France and the United Kingdom declare war on the Ottoman Empire. |
|
November 6 |
Fao Landing, British and Indians besiege the fortress at Fao. |
|
November 9 |
Battle of Cocos, northeast Indian Ocean. The Australian cruiser Sydney destroys the German cruiser Emden. |
Details |
November 11 |
Sultan Mehmed V declares Jihad on the Allies. |
Details |
November 11–21 |
Battle of Basra. |
Details |
November 11 – December 6 |
Battle of Łódź (aka Silesian Offensive). |
Details |
November 16 – December 15 |
Battle of Kolubara, Austro-Hungarians leave Serbia. |
|
December 1–13 |
Battle of Limanowa. |
|
December 3–9 |
Battle of Qurna. |
|
December 8 |
Battle of the Falklands. Von Spee's German cruiser squadron is defeated by the Royal Navy. |
Details |
December 10 |
Hill 60 captured by the Germans. |
Details |
December 16 |
The German fleet shells Scarborough and Hartlepool, England. |
Details |
December 18–22 |
Battle of Givenchy. |
|
December 17 – January 13, 1915 |
First Battle of Artois. |
|
December 20 |
Fighting begins at Perthes. |
Details |
December 20 – 17 March 1915 |
First Battle of Champagne. |
|
December 22 |
Fighting begins at Noyon. |
Details |
December 22 – January 2, 1915 |
The Russians win the Battle of Sarikamish, Caucasia. |
Details |
December 24–25 |
In some sectors of the Western Front, an unofficial Christmas truce is observed between German and British forces. |
Details |
December 25 – January 18, 1915 |
Battle of Ardahan. |
|
Dates |
Events |
|
January 2 |
The Russian offensive in the Carpathians begins. It will continue until April 12. |
|
January 18–19 |
Battle of Jassin. |
|
January 19 |
First Zeppelin raid on Great Britain. |
Details |
January 19 – December 22 |
Battle of Hartmannswillerkopf, series of battles fought to control the peak. |
|
January 24 |
Battle of Dogger Bank between squadrons of the British Grand Fleet and the German Hochseeflotte. |
Details |
January 24–26 |
Chilembwe uprising led by John Chilembwe in Nyasaland. |
|
January 28 – February 3 |
The Ottomans fail to capture the Suez Canal. |
Details |
January 31 |
Battle of Bolimov. First German use of chemical weapons.[31] |
Details |
February 4 |
Germany begins unrestricted submarine warfare against merchant vessels. |
Details |
February 7–22 |
Second Battle of the Masurian Lakes. The Russian X Army is defeated. |
Details |
February 19 |
British and French naval attack on the Dardanelles. The Gallipoli Campaign begins. |
Details |
March 10 – March 13 |
Battle of Neuve Chapelle. After an initial success, a British offensive is halted. |
Details |
March 22 |
The Siege of Przemyśl ends. The Russians capture the fortress. |
Details |
April 5 – May 5 |
First Battle of Woevre. |
|
April 12–14 |
Battle of Shaiba. |
|
April 19 – May 17 |
The Ottomans besiege the Armenian city of Van. |
Details |
April 22 – May 25 |
The Second Battle of Ypres, which ends in a stalemate. Germany first uses the poison gas. |
Details |
April 22–23 |
Battle of Gravenstafel, First stage of the Second Battle of Ypres. |
|
April 24 – May 5 |
Battle of St Julien, part of the Second Battle of Ypres. |
|
April 25 |
Allied forces land on Gallipoli, landing at Anzac Cove and Cape Helles. |
Details |
London Pact between the Entente and Italy. |
Details |
April 28 |
First Battle of Krithia. The Allied advance is repelled. |
Details |
May 1 |
The Gorlice-Tarnów begins: the German troops under General Mackensen break through the Russian lines in Galicia. |
Details |
Battle of Eski Hissarlik. |
|
May 3 |
Troops withdraw from Anzac Cove. |
Details |
May 6–8 |
Second Battle of Krithia. The Allied attempts at advancing are thwarted again. |
Details |
May 7 |
The British liner Lusitania is sunk by a German U-boat. |
Details |
May 8–13 |
Battle of Frezenberg Ridge, Part of the Second Battle of Ypres. |
|
May 9 – June 18 |
Second Battle of Artois. |
|
May 9 |
Battle of Aubers Ridge, a phase of the Second Battle of Artois. |
|
May 10 |
Troops from Hungary rout the Russians at Jarosław. Lviv is again in Austrian hands. |
|
May 11 |
Armistice called at Gallipoli to bury the dead. |
Details |
May 12 |
Windhoek, capital of German South-West Africa, is occupied by South African troops. |
Details |
May 15–25 |
Battle of Festubert. |
|
May 16 – June 23 |
Battle of Konary. |
|
May 23 |
Italy declares war on Austria-Hungary. |
Details |
May 24–25 |
Battle of Bellewaarde, final phase of the Second Battle of Ypres. |
|
June–September |
The Russian Great Retreat from Poland and Galicia. |
|
June 4 |
Third Battle of Krithia. Yet another Allied failure. |
Details |
The Russians leave Przemyśl. |
Details |
June 21–23 |
Battle of Bukoba. |
|
June 22 |
Mackensen breaks again through the Russian lines in the Lviv area. |
Details |
June 23 – July 7 |
First Battle of the Isonzo. |
Details |
June 27 |
The Austro-Hungarians re-enter Lviv. |
Details |
June 28 – July 5 |
The British win the Battle of Gully Ravine. |
Details |
July |
Battle of Kara Killisse. |
Details |
July 9 |
The German forces in South-West Africa surrender. |
Details |
July 10–26 |
Battle of Manzikert. |
Details |
July 18 – August 3 |
Second Battle of the Isonzo. |
Details |
July 25 |
Italians capture Cappuccio Wood. |
Details |
August 5 |
The Germans occupy Warsaw. |
Details |
August 6–10 |
Battle of Lone Pine, part of the August Offensive. |
|
August 6–13 |
Battle of Krithia Vineyard, part of the August Offensive. |
|
August 6–15 |
Allies land at Suvla Bay, a phase of the August Offensive. |
Details. |
August 6–21 |
Battle of Sari Bair, part of the August Offensive. Last and unsuccessful attempt by the British to seize the Gallipoli peninsula. |
Details |
August 7 |
Battle of the Nek, a phase of the August Offensive. |
|
August 7–19 |
Battle of Chunuk Bair, a phase of the August Offensive. |
|
August 21 |
Scimitar Hill, a phase of the August Offensive. |
|
August 21–29 |
Battle of Hill 60, part of the August Offensive. |
Details |
August 26 – September 19 |
Sventiany Offensive, a phase of the Gorlice-Tarnow Offensive. |
|
September 1 |
Germany suspends unrestricted submarine warfare. |
Details |
September 8 |
Nicholas II removes Grand Duke Nicholas Nikolayevich as Commander-in-Chief of the Russian Army, personally taking that position. |
Details |
September 15 – November 4 |
Third Battle of Artois. |
|
September 19 |
The Germans occupy Vilnius. The Gorlice-Tarnów Offensive ends. |
Details |
September 25–28 |
Battle of Loos, a major British offensive, fails. |
Details |
September 25 – October 15 |
Battle of the Hohenzollern Redoubt, a phase of the Battle of Loos. |
|
September 25 – November 6 |
Second Battle of Champagne. |
|
September 28 |
Battle of Es Sinn. |
|
October 7 – December 4 |
Serbia is invaded by Germany, Austria-Hungary, and Bulgaria. |
Details |
October 14 |
Bulgaria declares war on Serbia |
Details |
October 14 – November 9 |
Morava Offensive, a phase of the Central Powers Invasion of Serbia, Bulgarians break through Serbian lines. |
|
October 14 – November 15 |
Ovche Pole Offensive, a phase of the Central Powers invasion of Serbia, Bulgarians break through Serbian lines. |
|
October 15 |
The United Kingdom declares war on Bulgaria. |
|
October 16 |
France declares war on Bulgaria. |
|
October 17 – November 21 |
Battle of Krivolak, start of the set up of the Salonika Front. |
|
October 18 – November 4 |
Third Battle of the Isonzo |
Details |
October 19 |
Italy and Russia declare war on Bulgaria. |
|
October 27 |
A French army lands in Salonika and, with the help of British and Italian troops, sets up a Balkan Front. |
|
November 10 – December 2 |
Fourth Battle of the Isonzo |
|
November 10 – December 4 |
Kosovo Offensive, a phase of the Central Powers invasion of Serbia, Serbians pushed into Albania. |
Details |
November 22–25 |
Battle of Ctesiphon, in present-day Iraq. |
Details |
November 27 |
The Serbian army collapses. It will retreat to the Adriatic Sea and be evacuated by the Italian and French Navies. |
Details |
December – July, 1916 |
Battle of Lake Tanganyika. |
|
December 6–12 |
Battle of Kosturino |
|
December 7 |
The First Siege of Kut, Mesopotamia, by the Ottomans begins. |
Details |
December 19 |
Douglas Haig replaces John French as commander of the British Expeditionary Force. |
Details |
Dates |
Events |
|
January 5–17 |
Austro-Hungarian offensive against Montenegro, which capitulates. |
Details |
January 6–7 |
Battle of Mojkovac |
|
January 6–8 |
Battle of Sheikh Sa'ad, a phase of the First Siege of Kut. |
|
January 9 |
The Gallipoli Campaign ends in an Allied defeat and an Ottoman victory. |
Details |
January 10 – February 16 |
Battle of Erzurum. |
|
January 11 |
Corfu occupied by the Allies. |
Details |
January 13 |
Battle of Wadi, a phase of the First Siege of Kut. |
Details |
January 21 |
Battle of Hanna, a phase of the First Siege of Kut. |
|
January 24 |
Reinhard Scheer is appointed commander of Germany's Hochseeflotte. |
Details |
January 27 |
Conscription introduced in the United Kingdom by the Military Service Act. |
Details |
February 5 – April 15 |
Trebizond Campaign. |
|
February 12 |
Battle of Salaita Hill. |
|
February 21 |
The Battle of Verdun begins. |
|
February 26 |
Battle of Agagia, Senussi rebellion suppressed by the British. |
|
February 28 |
German Kamerun (Cameroon) surrenders. |
Details |
March 1 |
Germany resumes unrestricted submarine warfare. |
Details |
March 1–15 |
Fifth Battle of the Isonzo. |
|
March 2 – August 4 |
Battle of Bitlis. |
|
March 8 |
Battle of Dujaila: a British attempt to relieve Kut failed. |
Details |
March 9 |
Germany declares war on Portugal. Portugal officially enters the war. |
Details |
March 11–12 |
Battle of Latema Nek. |
|
March 18 |
Battle of Kahe. |
|
March 18 – April |
Lake Naroch Offensive. |
|
April 24–29 |
Easter Rising by Irish rebels for independence from the United Kingdom. |
Details |
April 27–29 |
Gas attack at Hulluch. |
|
April 29 |
The British forces under siege at Kut surrender to the Ottomans, first siege of Kut ends. |
Details |
May 7–10 |
Battle of Kondoa Irangi. |
|
May 10 |
Germany suspends unrestricted submarine warfare. |
Details |
May 15 – June 10 |
Austro-Hungarian Strafexpedition in Trentino. |
Details |
May 31 – June 1 |
Battle of Jutland between Britain's Grand Fleet and Germany's Hochseeflotte. |
Details |
June 2–14 |
Battle of Mont Sorrel. |
|
June 4 |
The Brusilov Offensive begins. |
|
June 5 |
The Arab Revolt in Hejaz begins. |
Details |
The HMS Hampshire is sunk off the Orkney Islands; Lord Kitchener dies. |
Details |
June 10 |
Italy: Paolo Boselli succeeds Antonio Salandra as Prime Minister. |
Details |
The Siege of Medina begins. |
|
June 10 – July 4 |
Battle of Mecca, Arabs capture the city. |
Details |
June 30 |
Battle of the Boar's Head, diversion from the Battle of the Somme which began the next day. |
|
July |
Battle of Taif. |
Details |
July 1 |
The Battle of the Somme begins. |
Details |
July 1–13 |
Second Battle of Albert (Opening phase of the Battle of the Somme). |
Details |
July 1–2 |
British capture Fricourt during the Second Battle of Albert. |
Details |
July 2–25 |
Battle of Erzincan. |
|
July 3–7 |
British and French capture La Boisselle during the Second Battle of Albert. |
Details |
July 3–12 |
British and French capture Mametz Wood during the Second Battle of Albert. |
Details |
July 3–17 |
British capture Ovillers during the Second Battle of Albert and Battle of Bazentin Ridge. |
Details |
July 4–6 |
Battle of Kostiuchnowka. |
|
July 7–11 |
Allies capture Contalmaison during the Second Battle of Albert. |
Details |
July 8–14 |
British capture Trônes Wood during the Second Battle of Albert. |
Details |
July 14–17 |
Battle of Bazentin Ridge (Initial phase of the Battle of the Somme) |
Details |
July 14 – September 15 |
Battles for Longueval and Delville Wood (Initial phase of the Battle of the Somme) |
Details |
July 19–20 |
Battle of Fromelles (Initial phase of the Battle of the Somme). |
|
July 23 – August 7 |
Battle of Pozières (Initial phase of the Battle of the Somme) |
Details |
July 24 – August 8 |
Battle of Kowel. |
|
August 3–5 |
Battle of Romani. Ottoman attack on the British in the Sinai peninsula fails. |
Details |
August 6–17 |
Sixth Battle of the Isonzo. The Italians capture Gorizia (August 9). |
Details |
August 6 |
Battle of Doberdo, part of the Sixth Battle of Isonzo. |
|
August 9–18 |
First battle of Doiran. |
Details |
August 24 |
Battle of Mlali. |
|
August 27 |
Italy declares war on Germany. |
|
Romania enters the war on the Entente's side. Her army is defeated in a few weeks. |
|
August 27 – December |
Conquest of Romania by Central Powers. |
Details |
August 27 – November 26 |
Battle of Transylvania, a phase of the conquest of Romania. |
|
August 29 |
Paul von Hindenburg replaces Erich von Falkenhayn as German Chief of Staff. |
Details |
September 2–6 |
Battle of Turtucaia, a phase of the conquest of Romania. |
|
September 3–6 |
Battle of Guillemont (intermediate phase of the Battle of the Somme) |
Details |
September 5–7 |
Battle of Dobrich, a phase of the conquest of Romania. |
|
September 6 |
The Central Powers create a unified command. |
|
September 7–11 |
Battle of Kisaki. |
|
September 9 |
Battle of Ginchy (intermediate phase of the Battle of the Somme) |
Details |
September 12 – December 11 |
Monastir Offensive, set up of the Salonika Front. |
|
September 12–14 |
Battle of Malka Nidzhe, a phase of the Monastir Offensive. |
|
September 12–30 |
Battle of Kaymakchalan, a phase of the Monastir Offensive. |
|
September 14–17 |
Seventh Battle of the Isonzo |
|
September 15–22 |
Battle of Flers-Courcelette (last offensive of the Battle of the Somme). The British use armored tanks for the first time in history. |
Details |
September 17–19 |
First Battle of Cobadin, a phase of the conquest of Romania. |
|
September 20 |
The Brusilov Offensive ends with a substantial Russian success. |
Details |
September 25–28 |
Battle of Morval (part of the final stages of the Battle of the Somme) |
Details |
September 26–28 |
Battle of Thiepval Ridge (part of the final stages of the Battle of the Somme) |
Details |
September 29 – October 5 |
Flamanda Offensive, a phase of the conquest of Romania. |
|
October–November |
First Battle of the Cerna Bend, a phase of the Monastir Offensive. |
Details |
October 1 – November 5 |
Battle of Le Transloy (part of the final stages of the Battle of the Somme) |
Details |
October 1 – November 11 |
Battle of Ancre Heights (part of the final stages of the Battle of the Somme). |
|
October 9–12 |
Eighth Battle of the Isonzo. |
|
October 19–25 |
Second Battle of Cobadin, a phase of the conquest of Romania. |
|
October 24 |
The French recapture Fort Douaumont near Verdun. |
Details |
November 1–4 |
Ninth Battle of the Isonzo. |
|
November 13–18 |
Battle of the Ancre (closing phase of the Battle of the Somme) |
Details |
November 18 |
The Battle of the Somme ends with enormous casualties and no winner. |
Details |
November 21 |
HMHS Britannic sinks after hitting a German mine |
Details |
Francis Joseph I, Emperor of Austria and King of Hungary, dies and is succeeded by Charles I. |
Details |
November 25 |
David Beatty replaces John Jellicoe as commander of the Grand Fleet. Jellicoe becomes First Lord of the Sea. |
Details |
November 25 – December 3 |
Battle of Bucharest, a phase of the conquest of Romania. |
|
November 28 |
Prunaru Charge, a phase of the Battle of Bucharest, Romanian cavalry desperately charge into enemy lines. |
|
December 1 |
Battle of the Arges, a phase of the Battle of Bucharest. |
|
December 1 – January 18, 1917 |
Allies capture Yanbu. |
Details |
December 5–7 |
United Kingdom: Prime Minister H. H. Asquith resigns and is succeeded by David Lloyd George. |
Details |
December 6 |
The Germans occupy Bucharest. The capital of Romania moved to Iaşi. |
Details |
December 13 |
Robert Nivelle replaces Joseph Joffre as Commander-in-Chief of the French Army. |
Details |
December 23 |
Battle of Magdhaba in the Sinai peninsula. |
Details |
December 23–29 |
Christmas Battles. |
|
December 27 |
Togoland is divided into British and French administrative zones. |
Details |
December 29 |
Grigori Rasputin, Russia's éminence grise, is assassinated. |
Details |
Dates |
Events |
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January 3–4 |
Battle of Behobeho. |
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January 9 |
Battle of Rafa. The British drive the Ottomans out of Sinai. |
Details |
January 11 – March 13 |
British raid the Ancre. |
Details |
January 16 |
The German Foreign Secretary Arthur Zimmermann sends a telegram to his ambassador in Mexico, instructing him to propose to the Mexican government an alliance against the United States. |
Details |
February 1 |
Germany resumes unrestricted submarine warfare. |
Details |
February 23 |
Second Battle of Kut. The British recapture the city. |
Details |
February 23 – April 5 |
The Germans withdraw to the Hindenburg Line. |
Details |
March 1 |
Arz von Straussenberg replaces Conrad von Hötzendorf as Austro-Hungarian Chief of Staff. |
Details |
March 8–11 |
The British capture Baghdad. |
Details |
March 13 – April 23 |
Samarrah Offensive, British capture much of Mesopotamia. |
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March 15 |
Russia: Czar Nicholas II abdicates. A provisional government is appointed. |
Details |
March 26 |
First Battle of Gaza. The British attempt to capture the city fails. |
Details |
April–October |
Stalemate in Southern Palestine. |
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April 2–3 |
Australians attack Noreuil. |
Details. |
April 6 |
The United States of America declares war on Germany. |
Details |
April 9 – May 17 |
Second Battle of Arras. The British attack a heavily fortified German line without obtaining any strategic breakthrough. |
Details |
April 9–12 |
The Canadians obtain a significant victory in the Battle of Vimy Ridge, part of the first phase of the Second Battle of Arras. |
Details |
April 9–14 |
First Battle of the Scarpe, part of the first phase of the Second Battle of Arras. |
Details |
April 10–11 |
First Battle of Bullecourt,part of the first phase of the Second Battle of Arras. |
Details |
April 15 |
Battle of Lagnicourt, part of the Second phase of the Second Battle of Arras. |
Details |
April 16 – May 9 |
The Second Battle of the Aisne (aka Nivelle Offensive) ends in disaster for both the French army and its commander Robert Nivelle. |
Details |
April 17–20 |
Battle of the Hills (aka Third battle of Champagne), a diversion to the Second Battle of the Aisne. |
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April 19 |
Second Battle of Gaza. The Ottoman lines resist a British attack. |
Details |
April 22 – May 8 |
Second Battle of Doiran. |
Details |
April 23–24 |
Second Battle of Scarpe, part of the second phase of the Second Battle of Arras. |
Details |
April 28–29 |
Battle of Arleux, part of the Second phase of the Second Battle of Arras. |
Details |
April 29 – May 20 |
Series of mutinies in the French army. |
Details |
May 3–4 |
Third battle of the Scarpe, part of the second phase of the Second Battle of Arras. |
Details |
May 3–17 |
Second Battle of Bullecourt, part of the second phase of the Second Battle of Arras. |
Details |
May 5–15 |
Allied Spring offensive on the Salonika Front. |
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May 5–9 |
Second Battle of the Cerna Bend, a phase of the Allied Spring Offensive. |
Details |
May 12 – June 6 |
Tenth Battle of the Isonzo. |
Details |
May 15 |
Philippe Pétain replaces Robert Nivelle as Commander-in-Chief of the French Army. |
Details |
May 23 |
Battle of Mount Hermada in the Karst. |
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June–October |
Operation Hush, British attempt to capture coast of Belgium fails. |
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June 7–14 |
Second Battle of Messines, the British blow 19 deep mines and recapture Messines Ridge. |
Details |
June 10–29 |
Battle of Mount Ortigara. |
Details |
June 12 |
Greece: King Constantine I abdicates. |
Details |
June 13 |
First successful heavy bomber raid on London done by the Gotha G.IV. |
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June 25 |
First American troops land in France. |
Details |
June 30 |
Greece declares war on the Central powers. |
Details |
July 1–19 |
The Kerensky Offensive fails. It is the last Russian initiative in the war. |
Details |
July 1–2 |
Battle of Zborov, a phase of the Kerensky Offensive. |
Details |
July 6 |
Arab rebels led by Lawrence of Arabia seize the Jordanian port of Aqaba. |
Details |
July 20 |
Corfu Declaration about the future Kingdom of Yugoslavia.[56] |
Details |
July 22 – August 1 |
Battle of Marasti |
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July 29 |
Battle of Kiawe Bridge. |
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July 31 |
The Third Battle of Ypres (aka Battle of Passchendaele) begins. |
Details |
July 31 – August 2 |
Battle of Pilckem Ridge (Opening phase of the Third Battle of Ypres). |
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August 2–10 |
Battle of Rumbo. |
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August 6–20 |
Battle of Mărăşeşti. |
Details |
August 8–20 |
Second Battle of Oituz. |
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August 15–25 |
Battle of Hill 70 (Initial phase of the Battle of Third Battle of Ypres). |
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August 16–18 |
Second Battle of Langemarck (Initial phase of the Battle of Third Battle of Ypres). |
Details |
August 18–28 |
Eleventh Battle of the Isonzo. |
Details |
August 20–26 |
Second Offensive Battle of Verdun. |
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September – October |
Operation Albion. German capture of Oesel, Dago and Moon Islands. |
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September 1–3 |
Battle of Jugla. |
|
September 8 |
Russia: General Kornilov's coup attempt fails. |
Details |
September 20–26 |
Battle of the Menin Road Ridge (Intermediate phase of the Third Battle of Ypres). |
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September 26–27 |
Battle of Polygon Wood (Intermediate phase of the Battle of the Third Battle of Ypres). |
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September 28–29 |
Battle of Ramadi, Mesopotamia. |
Details |
October 4 |
Battle of Broodseinde (part of the final phases of the Battle of the Third Battle of Ypres). |
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October 9 |
Battle of Poelcappelle (part of the final phases of the Battle of the Third Battle of Ypres). |
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October 12 |
First Battle of Passchendaele (part of the final phases of the Third Battle of Ypres). |
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October 15–18 |
Battle of Mahiwa. |
|
October 23 |
Battle of Wadi Musa. |
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October 23 – November 10 |
Battle of La Malmaison, delayed French attack on the Chemin des Dames. |
Details |
October 24 – November 4 |
Battle of Caporetto. The Austro-Hungarians and Germans break through the Italian lines. The Italian army is defeated and falls back on the Piave River. |
Details |
October 26 – November 10 |
Second Battle of Passchendaele (Closing phase of the Third Battle of Ypres). |
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October 27 |
Battle of Buqqar Ridge. |
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October 30 |
Italy: Vittorio Emanuele Orlando succeeds Paolo Boselli as Prime Minister. |
Details |
October 31 – November 7 |
Third Battle of Gaza. The British break through the Ottoman lines. |
Details |
October 31 |
Battle of Beersheba (opening phase of the Third Battle of Gaza). |
Details |
November 1–6 |
Battle of Tel el Khuweilfe. |
|
November 2 |
Balfour Declaration: the British government supports plans for a Jewish "national home" in Palestine. |
Details |
November 5 |
The Allies agree to establish a Supreme War Council at Versailles. |
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November 7 |
The October Revolution begins in Russia. The Bolsheviks seize power. |
Details |
Charge at Sheria. |
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November 8 |
Armando Diaz replaces Luigi Cadorna as Commander-in-Chief of the Italian Army. |
Details |
Charge at Huj. |
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November 9 – December 28 |
First Battle of the Piave: the Austro-Hungarians and Germans try unsuccessfully to cross the river. |
Details |
November 10 |
The Third Battle of Ypres (aka Battle of Passchendaele) ends in a stalemate. |
Details |
November 11 – December 23 |
First Battle of Monte Grappa, Austro-Hungarian offensive halted. |
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November 13 |
France: Paul Painlevé is replaced by Georges Clemenceau as Prime Minister. |
Details |
Battle of Mughar Ridge. |
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November 14 |
Battle of Ayun Kara. |
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November 17 |
Second Battle of Heligoland Bight, North Sea. |
Details |
November 17 – December 30 |
Battle of Jerusalem. The British enter the city (December 11). |
Details |
November 18–24 |
Battle of Nebi Samwil, a phase of the Battle of Jerusalem. |
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November 20 – December 3 |
First Battle of Cambrai. A British attack fails and the battle results in a stalemate. |
Details |
November 25 |
Battle of Ngomano, the Germans invade Portuguese East Africa to gain supplies. |
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December 1 |
Battle of El Burj, a phase of the Battle of Jerusalem. |
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December 7 |
The United States declares war on Austria-Hungary. |
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December 16 |
Russia signs a preliminary armistice with Germany. |
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December 20–21 |
Battle of Jaffa, a phase of the Battle of Jerusalem. |
Details |
Dates |
Events |
|
January 8 |
Woodrow Wilson outlines his Fourteen Points. |
Details |
February to September |
Allied forces occupy the Jordan Rift Valley. |
Details |
February 9 |
The Central Powers signed an exclusive protectorate treaty with the Ukrainian People's Republic as part of the negotiations that took place in Brest-Litovsk. |
Details |
February 15–16 |
Battle of Rarancza. |
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February 18 – March 3 |
Operation Faustschlag, last offensive on Eastern Front. |
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February 19 |
British begin their assault on Jericho. |
Details |
February 21 |
The British capture Jericho. |
Details |
Germans capture Minsk. |
Details |
February 24 |
Germans capture Zhytomyr. |
Details |
February 25 |
German troops capture Estonia. |
Details |
February 28 |
Germans capture Pskov and Narva. |
Details |
March 2 |
Germans capture Kiev. |
Details |
March 3 |
At Brest-Litovsk, Leon Trotsky signs the peace treaty with Germany. |
Details |
March 7 |
German artillery bombard the Americans at Rouge Bouquet. |
Details |
March 8–12 |
Battle of Tell 'Asur. |
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March 8–13 |
Battle of Bakhmach. |
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March 21 – April 5 |
First phase of the Spring Offensive, Operation Michael (aka Second Battle of the Somme). The Germans obtain a Pyrrhic victory. |
Details |
March 21–23 |
The Battle of St. Quentin, first phase of Operation Michael and of the Spring Offensive. |
Details |
March 21 – April 2 |
First Transjordan attack on Amman. |
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March 23 – August 7 |
Artillery bombardment of Paris. |
Details |
March 24–25 |
First Battle of Bapaume, a phase of Operation Michael. |
Details |
March 25 |
First Battle of Noyon, a phase of Operation Michael. |
Details |
March 26 |
French Marshal Ferdinand Foch is appointed Supreme Commander of all Allied forces. |
Details |
March 26–27 |
Battle of Rosieres, a phase of Operation Michael. |
Details |
Action of Khan Baghdadi. |
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March 27–31 |
First Battle of Amman, a phase Of The First Transjordan Attack. |
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March 28 |
Third Battle of Arras (aka First Battle of Arras (1918)), a phase of Operation Michael. |
Details |
March 30 – April 5 |
First Battle of Villers-Bretonneux, a phase of Operation Michael. |
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April 1 |
Royal Air Force founded by combining the Royal Flying Corps and the Royal Naval Air Service. |
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April 4–5 |
Battle of the Avre, final phase of Operation Michael. |
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April 7–29 |
Second phase of the Spring Offensive, Operation Georgette (aka Battle of the Lys). The results are disappointing for the Germans. |
Details |
April 7–9 |
Battle of Estaires, first phase of Operation Georgette. |
Details |
April 10–11 |
Third Battle of Messines, a phase of Operation Georgette. |
Details |
April 12–13 |
Battle of Hazebrouck, a phase of Operation Georgette. |
Details |
April 13–15 |
Battle of Bailleul, a phase of Operation Georgette. |
Details |
April 17–19 |
First Battle of Kemmelberg, a phase of Operation Georgette. |
Details |
April 18 |
Battle of Bethune, a phase of Operation Georgette. |
Details |
April 24–27 |
Second Battle of Villers-Bretonneux, a phase of Operation Georgette. |
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April 25–26 |
Second Battle of Kemmelberg, a phase of Operation Georgette. |
Details |
April 29 |
Battle of Scherpenberg, final phase of Operation Georgette. |
Details |
April 30 – May 4 |
Second Transjordan attack on Shunet Nimrin and Es Salt. |
|
May 7 |
Treaty of Bucharest between Romania and the Central Powers. It will never be ratified. |
Details |
May 10–11 |
Battle of Kaniow. |
|
May 21 |
Ottomans invade Armenia. |
Details |
May 21–29 |
Battle of Sardarabad, a phase of the invasion of Armenia. |
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Battle of Abaran, a phase of the invasion of Armenia. |
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May 24–28 |
Battle of Karakilisa, a phase of the invasion of Armenia. |
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May 27 – June 6 |
Third Battle of the Aisne (aka Operation Blücher-Yorck, third phase of the Spring Offensive). After initial gains, the German advance is halted. |
Details |
May 28 |
Battle of Cantigny. |
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May 29–31 |
Battle of Skra-di-Legen |
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June 1–26 |
Battle of Belleau Wood, part of the German Spring Offensive. |
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June 8 |
Action of Arsuf. |
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June 8 – October |
Germany interferes in the Caucuses. |
Details |
June 9–12 |
Fourth phase of the Spring Offensive, Operation Gneisenau (aka Battle of Matz). Despite substantial territorial gains, the Germans do not achieve their strategic goals |
Details |
June 13–23 |
Second Battle of the Piave: the Austro-Hungarian offensive is repelled. |
Details |
June 30 |
Battle of Moreuil Wood. |
|
July 4 |
Battle of Hamel. |
|
July 14 |
Battle of Abu Tellul. |
|
July 15 – August 6 |
Second Battle of the Marne and last German offensive on the Western Front, which fails when the Germans are counterattacked by the French. |
Details |
July 15–17 |
Champagne-Marne Offensive (consisting of the Fourth Battle of Champagne and the Battle of the Mountain of Reims), a phase of the Second Battle of the Marne. last phase of the Spring Offensive and last German offensive of World War I. |
Details |
July 17 |
The Tsar and his family were shot early in the morning by the Bolsheviks. |
Details |
July 18 |
Battle of Chateau-Thierry, a phase of the Second Battle of the Marne. |
Details |
July 18–22 |
Battle of Soissons,a phase of the Second Battle of the Marne. |
Details |
July 19 |
Battle of Tardenois, a phase of the Second Battle of the Marne. |
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August 8 – November 11 |
Hundred Days Offensive, last offensive on Western Front. |
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August 8–12 |
Battle of Amiens, first phase of the Hundred Days Offensive. |
Details |
August 9–12 |
Battle of Montdidier. |
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August 13 – September 3 |
Battle of San Matteo. |
|
August 17–29 |
Second Battle of Noyon, a phase of the Hundred Days Offensive. |
Details |
August 21 – September 3 |
Second Battle of the Somme(aka Third battle of the Somme), a phase of the Hundred Days Offensive. |
Details |
August 21–22 |
Third Battle of Albert, opening phase of the Second Battle of the Somme. |
Details |
August 21 – September 3 |
Second Battle of Bapaume, a phase of the Second Battle of the Somme. |
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August 26 – September 3 |
Fourth Battle of Arras (aka Second Battle of Arras (1918)), a phase of the Second Battle of the Somme |
Details |
August 26–30 |
Fourth Battle of the Scarpe (aka Battle of the Scarpe (1918)), a phase of the Fourth Battle of Arras. |
Details |
August 26 – September 14 |
Battle of Baku, last Turkish offensive of the war. |
|
August 31 – September 3 |
Battle of Mont Saint-Quentin, a phase of the Second Battle of the Somme. |
|
September 1–2 |
Battle of Peronne, a phase of the Battle of Mont Saint-Quentin. |
Details |
September 2–3 |
Battle of Drocourt-Queant Line, final phase of the Second Battle of the Somme. |
Details |
September 10 |
Battle of Savy-Dallon, a phase of the Hundred Days Offensive. |
Details |
September 12 |
Battle of Havrincourt, a phase of the Hundred Days Offensive. |
Details |
September 12–19 |
Battle of Saint-Mihiel, a phase of the Hundred Days Offensive. |
|
September 14 |
Battle of Vauxaillon, a phase of the Hundred Days Offensive. |
Details |
September 14–29 |
Vardar Offensive, final offensive on the Balkan Front. |
|
September 15 |
The Allies (French and Serbs) break through the Bulgarian lines at Dobro Polje, a phase of the Vardar Offensive. |
Details |
September 18 |
Battle of Epehy, a phase of the Hundred Days Offensive. |
|
September 18–19 |
Third Battle of Doiran, a phase of the Vardar Offensive, The Bulgarians halt the British and Greek advance. |
Details |
September 18 – October 17 |
Battle of the Hindenburg Line, a phase of the Hundred Days Offensive. The Allies break through the German lines. |
Details |
September 19–25 |
Battle of Megiddo. The British conquer Palestine. |
Details |
Battle of Nablus, a phase of the Battle of Meggido. |
Details |
Third Transjordan attack, a phase of the Battle of Nablus. |
|
Battle of Sharon, a phase of the Battle of Megiddo. |
|
September 22 |
The British capture Jisr ed Damieh in the Battle of Sharon. |
Details |
September 25 |
The British capture Tiberias during the Battle of Sharon. |
Details |
September 19 |
Battle of Tulkarm, a phase of the Battle of Sharon. |
|
Battle of Arara, a phase of the Battle of Sharon. |
|
September 19–20 |
Battle of Tabsor, a phase of the Battle of Sharon. |
|
September 20 |
Capture of Jenin, a phase of the Battle of Sharon. |
|
British capture both Afulah and Beisan during the Battle of Sharon. |
Details |
September 20–21 |
Battle of Nazareth, a phase of the Battle of Sharon. |
|
September 23 |
Battle of Haifa, a phase of the Battle of Sharon. |
Details |
September 25 |
Battle of Samakh, a phase of the Battle of Sharon. |
|
Second Battle of Amman, a phase of the Third Transjordan Attack. |
|
September 26 – November 11 |
Meuse-Argonne Offensive, the final phase of the Hundred Days Offensive and of World War I. |
Details |
September 26 – October 1 |
The British enter Damascus. |
Details |
September 26 |
Battle of Somme-Py (Initial phase of the Meuse-Argonne Offensive). |
Details |
Charge at Irbid, a phase of the Capture of Damascus. |
|
September 26–27 |
British capture Deraa during the Capture of Damascus. |
Details |
September 27 |
Battle of Jisr Benat Yakub, a phase of the Capture of Damascus. |
|
September 27 – October 1 |
Battle of the Canal du Nord, a phase of the Battle of the Hindenburg Line. |
|
September 28 – October 2 |
Fifth Battle of Ypres (aka Advance on Flanders), a phase of the Battle of the Hindenburg Line. |
|
September 29 – October 10 |
Battle of St. Quentin Canal, a phase of the Hundred Days Offensive. |
|
September 30 |
Bulgaria signs an armistice with the Allies. |
|
Battle of Saint-Thierry (Initial phase of the Meuse-Argonne Offensive). |
Details |
Charge at Kaukab, a phase of the Capture of Damascus. |
|
Charge at Kiswe, a phase of the Capture of Damascus. |
|
October 3–27 |
Pursuit to Haritan. |
|
Battle of Blanc Mont Ridge. |
|
October 8–10 |
Second Battle of Cambrai (aka Battle of Cambrai (1918)), a phase of the Battle of the Hindenburg Line. |
Details |
October 14–17 |
Battle of Montfaucon (intermediate phase of the Meuse-Argonne Offensive). |
Details |
October 14–19 |
Battle of Courtrai, closing phase of the Hundred Days offensive. |
Details |
October 15 |
Battle of Mont-D'Origny, a phase of the Hundred Days Offensive. |
Details |
October 17–26 |
Battle of the Selle, closing phase of the Hundred Days Offensive. |
|
October 20 |
Germany suspends submarine warfare. |
Details |
Battle of Lys and Escaut (Which included the Second Battle of Lys and the Battle of the Escaut), a phase of the Hundred Days Offensive. |
Details |
Battle of Serre, a phase of the Hundred Days Offensive. |
Details |
October 23–30 |
Battle of Sharqat. |
|
October 24 – November 4 |
Battle of Vittorio Veneto. The Austro-Hungarian army is routed. The Italians enter Trent and land at Triest. |
Details |
October 24–28 |
Second Battle of Monte Grappa, beginning phase of Vittorio Veneto. |
|
October 25 |
Battle of Aleppo. |
Details |
October 29 |
Wilhelm Groener replaces Erich Ludendorff as Hindenburg's deputy. |
Details |
Germany's Hochseeflotte mutinies. |
Details |
State of Slovenes, Croats and Serbs proclaimed. |
Details |
October 30 |
The Ottoman Empire signs the Armistice of Mudros. |
Details |
November 1 |
Battle of Chesne (Closing phase of the Meuse-Argonne Offensive). |
Details |
November 1–2 |
Battle of Valenciennes, closing phase of the Hundred Days Offensive. |
Details |
November 3 |
Austria-Hungary signs the armistice with Italy, effective November 4. |
|
November 4 |
Battle of the Sambre, closing phase of the Hundred Days Offensive. |
Details |
Second Battle of Guise, a phase of the Battle of Sambre. |
Details |
Battle of Thierache, a phase of the Battle of Sambre. |
Details |
November 6–11 |
Advance to the Meuse. |
|
November 9 |
Germany: Kaiser William II abdicates; republic proclaimed. |
Details |
November 10 |
Austria-Hungary: Kaiser Charles I abdicates. |
Details |
November 11 |
At 6 am, Germany signs the Armistice of Compiègne. End of fighting at 11 a.m.. |
|
Poland proclaimed. |
|
November 12 |
Austria proclaimed a republic. |
|
November 14 |
Czechoslovakia proclaimed a republic. |
Details |
German U-boats interned. |
|
3 days after the armistice, fighting ends in the East African theater when General von Lettow-Vorbeck agrees a cease-fire on hearing of Germany's surrender. |
Details |
November 21 |
Germany's Hochseeflotte surrendered to the United Kingdom. |
Details |
November 22 |
The Germans evacuate Luxembourg. |
|
November 25 |
11 days after agreeing a cease-fire, General von Lettow-Vorbeck formally surrenders his undefeated army at Abercorn in present-day Zambia. |
Details |
November 27 |
The Germans evacuate Belgium. |
|
December 1 |
Kingdom of Serbs, Croats and Slovenes proclaimed. |
Details |