Which country was not in the USSR?

The Union of Soviet Socialist Republics (also known as the USSR or the Soviet Union) consisted of Russia and 14 surrounding countries. The USSR's territory stretched from the Baltic states in Eastern Europe to the Pacific Ocean, including the majority of northern Asia and portions of central Asia.

The USSR was founded in 1922, five years after the Russian Revolution overthrew the monarchy of Czar Nicholas II. Vladimir Ilyich Lenin was one of the leaders of the revolution and was the first leader of the USSR until his death in 1924.

Countries in the USSR: Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan

Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan.