The Anti-Fascist Bloc was an anti-fascist organization of Polish Jews formed in the March 1942 in the Warsaw Ghetto. It was created after an alliance between leftist-Zionist, communist and socialist Jewish parties was agreed upon. The initiators of the bloc were Mordechai Anielewicz, Józef Lewartowski (Aron Finkelstein) from the Polish Workers' Party, from Hashomer Hatzair, from Poale Zion-Left, as a representative of socialist-zionists and Izaak Cukierman with his wife Cywia Lubetkin from Dror. The Jewish Bund did not join the bloc though they were represented at its first conference by Abraham Blum and Maurycy Orzech. According to Hersz Berlinski and Izaak Cukierman, the Bund did not join because they were waiting for a general socialist organization to be formed which would encompass