WORLD HISTORY

Detailed explanation-1: -Russia left WW1 because it was in the interest of Russian Communists (Bolsheviks) who took power in November 1917. The Bolsheviks’ priority was to win a civil war against their domestic opponents, not to fight in WW1. They also thought that Germany would soon lose the war in any case.

Detailed explanation-2: -After the October Revolution, Germany imposed the Treaty of Brest-Litovsk by threatening to resume their attack on Russia if the agreement was not signed immediately. According to the treaty, Russia had to give up about 30% of its territory. The treaty ended Russian participation in World War I.

Detailed explanation-3: -Answer and Explanation: Russia’s withdrawal from World War I allowed Germany to stop fighting a two-front war and concentrate its forces and supplies on the Western Front, where it fought the combined efforts of the United Kingdom and France, and eventually the United States.

Detailed explanation-4: -The Russian Revolution took place in 1917, during the final phase of World War I. It removed Russia from the war and brought about the transformation of the Russian Empire into the Union of Soviet Socialist Republics (USSR), replacing Russia’s traditional monarchy with the world’s first Communist state.

Detailed explanation-5: -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.