Flag of the Union of Soviet Socialist Republics (USSR or simply the Soviet Union). A star sits above the communist hammer and sickle symbol, items in yellow gold against a red background. Click here to enlarge.
Although many people make the mistake of saying or writing "Soviet Union" when they mean Russia, or vice versa, the reality is that Russia was only one of fifteen republics that made up the Soviet Union. These fifteen republics are, since the fall of the Soviet Union in the early 1990s, independent countries.