Zuckerman was a member of Ha'Chalutz. He was one of
the founders of the Jewish Fighting
Organization and deputy to Mordechai
Anielewicz. He was sent to the Aryan sector as the liason with the Polish undergrounds and
arms acquisition. After the death of Anielewicz, he was appointed commander
of the Fighting Organization. At the end of the war he was active in
getting Jews out of Poland.
He immigrated to Israel in 1947 and
was one of the founders of Kibbutz Lochamei Ha'Geta'ot and Beit Lochamei
Ha'Geta'ot, the museum for the heritage of hte Holocaust and the uprising. He died in 1981.