The Soviet Union, U.S.S.R. (The Union of Soviet Socialist Republics) or C.C.C.P. (Russian: Союз Советских Социалистических Республик) was a nation that spanned Eastern Europe and Northern Asia. It is featured in all Call of Duty games with the exception of the Modern Warfare games and Call of Duty 3.
As a major participant in World War II, the Soviet Union is home to many characters and events in the Call of Duty series. Most games, but not all, in the Call of Duty series has at least one playable Soviet character. There are a total of 55 Soviet/Russian characters in the Call of Duty series.