The Red secret police, known as the Cheka, began to restore order to Russia after years of civil war. to plot against Lenin almost immediately after he came to power. infiltrating the governments of Russia’s enemies as spies. a Red Terror campaign to destroy all those who opposed the new regime. 13. What caused the United States to join the Allies in fighting World War I? the United States’s fear of the Austro-Hungarian powers the German embargo on gasoline the sinking of the Titanic the Germans’ use of unrestricted submarine warfare

The Cheka was founded right after the October Revolution in 1917. It was a temporary secret body. It is said that part of its troops were the ones that enforced the nacionalization of properties and ran the gulag system for detractors of the new regime.

Question 2 (13)

The correct answer is: "Germans’ use of unrestricted submarine warfare".

The US had been neutral in the conflict until 1917. Germany was performing submarine attacks to passenger and merchant ships. Moreover, Germany was trying to create and alliance with Mexico against the US (Zimmerman Telegram) Therefore President Wilson announced in Congress the declaration of war on Germany. Subsequently the US would also declare war on the German ally, Austria-Hungary.