Original: The Red Army Faction (German: Rote Armee Fraktion), shortened to RAF and in its early stages commonly known as Baader-Meinhof Group or Gang, was one of postwar West Germany's most violent and prominent groups who advocated communist inspired terrorism.
Simplified: The Red Army Faction or RAF (German Rote Armee Fraktion), was one of postwar West Germany's most active and prominent militant left-wing groups.