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History 20th century General World War I

World War I

African theatre of World War I

Theatre of operations during World War I

Aftermath of World War I

Events after the end of the war in 1918

Allies of World War I

Military coalition in World War I

American entry into World War I

Series of events causing the initially anti-war US government and public to join WWI

1916–1918 Arab uprising against the ruling Ottoman Turks during World War I

Assassination of Archduke Franz Ferdinand

1914 murder in Sarajevo, Bosnia and Herzegovina

Austro-Hungarian entry into World War I

Balfour Declaration

British government statement of 1917

Balkans theatre

Part of World War I

Battle of Caporetto

1917 battle of World War I

Battle of Galicia

Battle in World War I's Eastern Front

Battle of Passchendaele

Military campaign of the First World War

Battle of Tannenberg

Battle between Russian Empire and Germany during World War I

Battle of the Frontiers

Series of battles; part of the Western Front of World War I

Battle of the Somme

WWI battle between France and Britain against Germany

Battle of Verdun

Battle on the Western Front during the First World War

Battle of Vittorio Veneto

Battles of the Isonzo

Series of major battles between Italy and Austria-Hungary during WW I

Brusilov offensive

Battle on the Eastern Front during World War I

Caucasus campaign

Armed conflicts between the Russian and Ottoman Empires during WWI

Military coalition in World War I

East African campaign (World War I)

Series of battles in East Africa during World War I

Eastern Front (World War I)

East European theater of World War I

First Battle of the Marne

World War I battle

French entry into World War I

Entry of France into World War I

Gallipoli campaign

Military campaign against the Ottoman Empire during World War I

German entry into World War I

Aspect of history

German spring offensive

1918 German military offensive along the Western Front during WWI

Gorlice–Tarnów offensive

Great Retreat (Russia)

1915 strategic retreat by Russian forces during World War I

Hundred Days Offensive

Allied offensive during World War One

Italian front (World War I)

The Italian theatre of World War I

1914 events leading to World War I

Kamerun campaign

1914–1916 British, French and Belgian invasion of the German colony of Kamerun

Macedonian front

Part of the Balkans Theatre of WWI

Mesopotamian campaign

World War I military campaign

Middle Eastern theatre of World War I

Scene of action between 29 October 1914, and 30 October 1918

Military operations in North Africa during World War I

Series of conflicts during World War I

Nivelle offensive

1917 Franco-British offensive on the Western Front in the First World War

Ottoman entry into World War I

Entrance of the Ottoman Empire into the First World War

Revolutions of 1917–1923

Wave of political unrest and mass revolts in Europe in the aftermath of World War I

Romania in World War I

Aspect of history

Russian entry into World War I

Serbian campaign

1914 military campaign

Sinai and Palestine campaign

Campaign of the Middle Eastern theatre of World War I

Somaliland campaign

Military expeditions against the Devish Movement, 1900-1920

South West Africa campaign

1914 military campaign

Togoland campaign

1914 French and British invasion of the German colony of Togoland

Treaty of Brest-Litovsk

Separate peace treaty that the Soviet government was forced to sign on March 3, 1918

Treaty of Versailles

One of the treaties that ended World War I

U-boat campaign

WWI German naval campaign to attack Allied trade routes (1914-18)

Western Front (World War I)

Main theatre of war during the First World War

1914–1918 global conflict

Zimmermann telegram

1917 World War I telegram from Germany to Mexico proposing an alliance