| The five-member BWC exercised operational control of British Empire forces | Serbia was invaded by Austria-Hungary after Austria-Hungary placed a stringent ultimatum to the Serbian government demanding full compliance to an Austro-Hungarian investigation of complicity by the Serbian government in the assassination of Archduke Francis Ferdinand |
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| Figures do not include an additional 12,318 listed as missing and | General — Minister of War 1918• Following the , Britain, France, Italy and Japan became the permanent members of the council |
— In the staff of the 1st Montenegrin Army, to• The 1922 report listed 56,639 Army war dead.
26| Totals include 380 military deaths during 1919—21 | General — Chief of the General Staff of the Montenegrin Army 1914—1915• The Annual Report 2005-2006 is the source of total military dead |
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| — 16 April 1914 — 9 October 1916• and : seceded from Russia and fought against Ottoman Empire | — Commander of the Grand Fleet August 1914 — November 1916 ; First Sea Lord November 1916 — December 1917• of Defense for the period ending Dec |
The Russian withdrawal allowed for the final structure of the alliance, which was based on five :• The World War I Databook: The Essential Facts and Figures for All the Combatants 2002• After the , Russia left the alliance and ended formal involvement in the war, by the signing of the treaty of in November effectively creating a with the Central Powers.
18| : King of Greece, he became King of Greece after his father and brother retired from the throne | 2006 , Europe at War 1939—1945: No Simple Victory |
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| : Crown Prince of Greece, designated King after his father retired form the throne, he refused to become the new king and followed his father in exile | Of the two involved in the war, chose to capitulate, and was viewed as a state by the Entente powers: never became part of the Allies, and only narrowly avoided 's efforts of annexation, at the conclusion of hostilities in 1919 |
Brazil entered the war in 1917 after the United States intervened on the basis of Germany's unrestricted submarine warfare sinking its merchant ships, which Brazil also cited as a reason to enter the war fighting against Germany and the Central Powers.
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