Erich Fritz Emil Mielke (German: [ˈeːʁɪç ˈmiːlkə]; 28 December 1907 – 21 May 2000) was a German communist official who served as head of the East German Ministry for State Security (Ministerium für Staatsicherheit – MfS), better known as the Stasi, from 1957 until shortly after the fall of the Berlin Wall in 1989. Following the end of World War II in 1945, Mielke returned to the Soviet Zone of Occupied Germany, which he helped organize into a Marxist-Leninist satellite state under the Socialist Unity Party (SED), later becoming head of the Stasi.