The Union of Soviet Sovereign Republics (Russian: Союз Советских Cуверенных Республик, Soyuz Sovetskikh Suverennykh Respublik) also referred to as the USSR or CCCP and commonly known as the Soviet Union (Советский Союз, Sovietsky Soyuz), the Union (Союз, Soyuz) or simply Russia (Россия, Rossiya), is a federation extending from the Baltic Sea to the Pacific Ocean, and from the Arctic Ocean to the Caspian Sea.
The Soviet Union is the largest nation in the world by area and with over 335 Million inhabitants, the third most populous nation on the planet. It is also one of the two prominent superpowers in global politics and world culture (along with the United States), although military rivalry has diminished somewhat. The Soviet Union was first established on December 30, 1922, as a unification of four Soviet Socialist Republics, forming one of the first communist nations. During World War II (known as the "Great Patriotic War" in the Soviet Union), the Soviets assist with the Allies in a decisive victory over the Axis Powers, but at a large cost of casualties.
Refer to the article on the Soviet Union on Wikipedia.
Russia has a vibrant and colourful history. Spanning hundreds of years, the area has changed significantly.