No one joined in the Russian civil war.
The Zimmermann Telegram, the sinking of Lusitania, and the Russian Revolution.
It joined by declaring war after the Japanese Attack on the US Fleet at Pearl Harbor.
September 1939. The US joined the war in December 1941.
1944 when the USA joined the World War 2
Neither one of the two Russian revolutions became a World War. Both were in part caused by the damage the war was causing to the Russian population.
The Allies in World War 1 were: Britain, Australia, New Zealand, Canada, India, South Africa, France, the Russian Empire, some Arab Bedouin tribes, Greece, Italy and Belgium. America joined the war later.
Russia was one of the few countries that participated in both World War I and World War II. During World War I the Russian army was known as the Cossacks.
World war Two, Russian had over 10million casualties.
Afghan War 1st Balkan War 2nd Balkan War Hungarian-Romanian War Iraq War Romanian War of Independence Russian Civil War Russo-Turkish War War of Transnistria World War I World War II
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Vladimir Lenin was the Russian revolutionary leader at the end of World War 1.