Military units and formations disestablished in 1918

1871–1919 land warfare branch of the German military

1871–1919 maritime warfare branch of the German Empire's military

navy of Austria-Hungary

ground force of the Austro-Hungarian Dual Monarchy from 1867 to 1918

six British Army divisions sent to the Western Front during the First World War

1912-1918 aerial warfare component of the army of the United Kingdom

air warfare branch of the Austro-Hungarian Empire

Russian field army that fought in the Caucasus Campaign and Persian Campaign of World War I

part of the armed forces of the Russian Federation

1914-1918 aerial warfare component of the navy of the United Kingdom

formation of the British Army (1914-1945)

part of the armed forces of the Russian Federation

Austro-Hungarian field army

military unit

division of the Imperial Russian Army from 1914 to 1918

1914-1918 army-level command formation of the Imperial Russian Army

Dunsterforce was an Allied military force, established in December 1917 and named after its commander, Major-General Lionel Dunsterville. The force comprised fewer than 350 Australian, New Zealand, British and Canadian officers and NCOs, who were drawn from the Western and Mesopotamian fronts. The force was intended to organise local units in northern Iran (Persia) and South Caucasus, to replace the Tsarist army that had fought the Ottoman armies in Armenia. The Russians had also occupied northern Iran in co-operation with the British occupation of southern Iran, to create a cordon to prevent

military unit

military unit

austro-Hungarian army during World War I

Austro-Hungarian Army units (1882–1918)

military unit

historic military legion

military unit

army group of the Imperial Russian Army during World War I

Swedish paramilitary unit during the 1918 Finnish Civil War

elite light infantry unit in the German Army from 1915–1918 which consisted mainly of volunteers of Finnish Jäger troops

1914-1918 army of Austria-Hungary that fought in WWI

formation of the Austro-Hungarian Army

military unit

army level command of the German Army in World War I

military unit

imperial Russian military unit

1914-1918 Austro-Hungarian Army formation

field army of Imperial Russian army

Army group of the Imperial German Army

World War I Russian field army

military formation created during World War I

squadron of the German Flying Forces during the First World War (1916-1918)

nine companies of the US 77th Division during WWI

British Infantry Corp of WW I & WWII

World War I field Army

military unit

military unit

1916-1918 Austro-Hungarian Army formation

military unit

Austrian military unit

World War I corps

army group of the German Army

army group of the German Army

military unit

World War I Russian field army

field army of the British Army during World War I

military unit of Austria-Hungary

military unit

military unit

military unit

1912-1945 army-level field formation of the Bulgarian Army