Soviet Union Flag - Historical Symbol of the USSR (1922-1991) #1781146 (License: Personal Use)

This flag represents the Union of Soviet Socialist Republics (USSR), adopted in 1923 and used until the dissolution of the Soviet state in 1991. Its design includes a red field symbolizing revolution, a white canton with a red star (proletariat unity), hammer and sickle (worker-peasant alliance), and a blue stripe (water and labor). Two additional white stars appear on the red field, reflecting the original four founding republics-though later interpretations varied.

Used in historical articles, educational resources, museum exhibits, and political symbolism discussions; targets users researching Cold War history, Soviet iconography, or comparative flag studies.