Cold War
In February 1917, Tsar Nicholas II of the Russian Empire was overthrown because people were unhappy with their living conditions (like being a serf), especially during World War I. The new government in Russia was a democratic socialist government. Unfortunately, it was ineffective, and people were still unhappy. In November 1917, a communist group called the Bolsheviks, led by Vladimir Lenin, overthrew the new government and were supported by groups of workers called Soviets. The Bolsheviks created a new communist government called the Russian Soviet Federation Socialist Republic (also called simply Soviet Russia or the Russian SFSR).