 Thirty-two Jews from the Mandate for Palestine were trained by the British and parachuted behind enemy lines to engage in resistance activities.In the Warsaw Ghetto Uprising, two groups of partisans, the right-wing Jewish Military Union (Żydowski Związek Wojskowy, ŻZW) and the left-wing Jewish Combat Organization (Żydowska Organizacja Bojowa, ŻOB) led the uprising separately.Approximately 100,000 Jews fought in the Polish army against Nazi Germany during the German invasion of Poland.