The Allies in World War I, also known as the Allied Powers or the Entente, were a coalition of countries primarily including:
- France
- Great Britain (United Kingdom)
- Russia (until 1917)
- Italy (joined in 1915)
- Japan
- United States (joined in 1917)
Other nations that joined or supported the Allies included Belgium, Serbia, Montenegro, Greece, Romania, Portugal, China, Brazil, Cuba, Haiti, and several others from Europe, the Americas, Africa, and Asia
. The core of the Allies was initially formed by the Triple Entente: France, the United Kingdom, and Russia. Italy was originally part of the opposing Triple Alliance but switched sides to join the Allies in 1915. The United States entered the war later, in 1917, providing significant support
. The Allies fought against the Central Powers, which mainly consisted of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria
. In summary, the main Allied Powers in WWI were:
- France
- United Kingdom
- Russia (until 1917)
- Italy
- Japan
- United States (from 1917)
Supported by numerous smaller allied and associated countries worldwide
