Żydowski Związek Wojskowy (ŻZW, in Polish , Castilian Jewish military union ) was an underground organization of the Zionist Jewish resistance that operated during World War II in the area of the ghetto of Warsaw and that fought during the uprising of the ghetto of Warsaw . It was formed by almost former officers of the Polish army in late 1939 (shortly after the beginning of the German occupation of Poland ) in addition to prominent members of the Betar , Irgún cells and other independent members. The commander of the organization was Paweł Frenkiel .
Due to its close ties with the Armia Krajowa (AK), after the war the communist authorities of Poland suppressed the publication of books and articles on the ŻZW, so that its role in the uprising in the ghetto was undervalued, compared to the Left-wing Jewish organization Żydowska Organizacja Bojowa (Jewish fighting organization), whose role in fighting the Nazis is best covered in modern monographs.