Simcha Rotem, died in Jerusalem on 22 December 2018, at age 94. Opposing forces Jewish Two Jewish underground organisations fought in the Warsaw Uprising: the left wing Żydowska Organizacja Bojowa (ŻOB) founded in July 1942 by Zionist Jewish youth groups within the Warsaw Ghetto; and the right wing Żydowski Związek Wojskowy (ŻZW), or Jewish Military Union, a national organization founded in 1939 by former Polish military officers of Jewish background which had strong ties to the Polish Home Army, and cells in almost every major town across Poland.Maciej Kledzik (October 2002). "ŻZW; Appelbaum w cieniu Anielewicza". Rzeczpospolita (in Polish). 10 (12). 11 October 2002. Retrieved 9 May 2006. However both organisations were officially incorporated into the Polish Home Army and its command structure in exchange for weapons and training. Marek Edelman, who was the only surviving uprising commander from the left-wing ŻOB, stated that the ŻOB had 220 fighters and each was armed with a handgun, grenades, and Molotov cocktails. His organization had three rifles in each area, as well as two land mines and one submachine gun. Due to its socialist leanings, the Soviets and Israel promoted the actions of ŻOB as the dominant or only party in the Warsaw Ghetto Uprising, a view often adopted by secondary sources in the West. The right-wing faction ŻZW, which was founded by former Polish officers, was larger, more established and had closer ties with the Polish resistance, making it better equipped. Zimmerman describes the arms supplies for the uprising as "limited but real". Specifically, Jewish fighters of the ŻZW received from the Polish Home Army: 2 heavy machine guns, 4 light machine guns, 21 submachine guns, 30 rifles, 50 pistols, and over 400 grenades for the uprising. During the Warsaw Ghetto Uprising, ŻZW is reported to have had about 400 well-armed fighters grouped in 11 units, with 4 units including fighters from the Polish Home Army. Due to the ŻZW's anti-socialist stand and close ties with the Polish Home Army (which was subsequently outlawed by the Soviets), the Soviets suppressed publication of books and articles on ŻZW after the war and downplayed its role in the uprising, in favor of the more socialist ŻOB. The initially highly Socialist Israel did likewise thus hardly anyone heard of the ŻZW and its leaders. Also, the 1950s best selling American novel Mila 18 by Leon Uris presented the ŻOB. More weapons were supplied throughout