Vilna Ghetto
The Fareynikte Partizaner Organizatsye (; "United Partisan Organization"; referred to as FPO by its Yiddish initials) was a Jewish resistance organization based in the Vilna Ghetto that organized armed resistance against the Nazis during World War II. The clandestine organisation was established by Communist and Zionist partisans. Their leaders were writer Abba Kovner, Josef Glazman and Yitzhak Wittenberg.