Question

What event caused Russia to exit the war in 1917?

A. The Russian Revolution
B. The defeat of the Russian Army
C.Russia switched alliances
D. The Crimean War

Answer 1

A. Russian Revolution

Answer 2

The Russian Revolution

Step-by-step explanation:

In October of 1917, Lenin took full control of the government in what is called the Bolshevik Revolution. Russia was now the first communist country in the world. After the revolution, Russia exited World War I by signing a peace treaty with Germany called the Treaty of Brest-Litovsk.