The nations to the east of the Iron Curtain were Poland, East Germany, Czechoslovakia, Hungary, Romania, Bulgaria, Albania, and the USSR; however, East Germany, Czechoslovakia, and the USSR have since ceased to exist. Countries that made up the USSR were Russia, Belarus, Latvia, Ukraine, Estonia, Moldova, Armenia, Azerbaijan, Georgia, Uzbekistan, Kyrgyzstan, Tajikistan, Lithuania, Turkmenistan, and Kazakhstan. The events that demolished the Iron Curtain started with peaceful opposition in Poland, and continued into Hungary, East Germany, Bulgaria, and Czechoslovakia. Romania became the only socialist state in Europe to overthrow its government with violence.