Question

which was the last country to join the world war l in 1917 with the allies ?​

Answer 1

Answer:

bulgaria

hope it is useful

Answer 2

Answer:

On 6 April 1917, the United States entered the war as a co-belligerent, along with the associated allies of Liberia, Siam and Greece. After the 1917 October Revolution, Russia left the Entente and agreed to a separate peace with the Central Powers with the signing of the Treaty of Brest-Litovsk on 3 March 1918.