Union automobiliste de France, an early 20th-century French auto club; L’Union des aéroports français: The Union of French Airports; Unité d′aménagement forestier: Forest Management Unit, in Québec
USSR (a former transcontinental country in Europe and Asia (1922–1991), now split into Russia and 14 other countries; the Soviet Union; in full, Union des républiques socialistes soviétiques)
Union of Soviet Socialist Republics (a former transcontinental country in Europe and Asia (1922–1991), now split into Russia and 14 other countries; short form Union soviétique; abbreviation URSS)
Soviet Union (a former transcontinental country in Europe and Asia (1922–1991), now split into Russia and fourteen other countries; official name: Union des républiques socialistes soviétiques)