Allies of World War I

The Allies of World War I, Entente Powers, or Allied Powers were a coalition of countries led by France, the United Kingdom, Russia, Italy, Japan, and the United States against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, Bulgaria, and their colonies during the First World War (1914–1918).

Allies/Entente Powers
Allies in Green; Central Powers in Orange

Associated Allies and co-belligerents:

StatusMilitary alliance
Historical eraWorld War I
Preceded by
Succeeded by
Anglo-Portuguese Alliance
Treaty of London (1915)
Franco-Russian Alliance
Anglo-Japanese Alliance
Entente Cordiale
Anglo-Russian entente of 1907
Franco-Japanese Treaty of 1907
Anglo-Portuguese Alliance
Anglo-Japanese Alliance
Entente Cordiale
Franco-Polish alliance (1921)
Little Entente
Major European diplomatic alignments shortly before the war

By the end of the first decade of the 20th century, the major European powers were divided between the Triple Entente and the Triple Alliance. The Triple Entente was made up of France, Britain, and Russia. The Triple Alliance was originally composed of Germany, Austria–Hungary, and Italy, but Italy remained neutral in 1914. As the war progressed, each coalition added new members. Japan joined the Entente in 1914 and after proclaiming its neutrality at the beginning of the war, Italy also joined the Entente in 1915. The term "Allies" became more widely used than "Entente", although the Principal Allies of France, Britain, Russia, Italy, and Japan were sometimes known also as Quintuple Entente.[1] The colonies administered by the countries that fought for the allies were also part of the Entente Powers such as British India, French Indochina, and Japanese Korea.

The United States joined near the end of the war in 1917 (the same year in which Russia withdrew from the conflict) as an "associated power" rather than an official ally. Other "associated members" included Serbia, Belgium, Montenegro, Asir, Nejd and Hasa, Portugal, Romania, Hejaz, Panama, Cuba, Greece, China, Siam (now Thailand), Brazil, Armenia, Luxembourg, Guatemala, Nicaragua, Costa Rica, Haiti, Liberia, Bolivia, Ecuador, Uruguay and Honduras.[2] The treaties signed at the Paris Peace Conference recognised Great Britain, France, Italy, Japan and the United States as 'the Principal Allied and Associated Powers'.[3]

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