in the hands of resistance forces. Users : 100 pieces from US supplies used by insurgent army and partisans during Slovak National Uprising : Supplied to the French Forces of the Interior. Vichy France: Small number of captured examples issued to Milice française : Supplied to the Belgian Resistance during WW2. : Supplied to Italian partisans during the Italian Campaign of WW2 : Supplied to the Dutch resistance during WW2. : Used by the Philippine Army and Constabulary during World War II and Post War era from 1942 to 1960s and used again by the local recognized guerrillas from 1942 to 1945 during World War II. Yugoslav Partisans: Supplied by the OSS. Provisional Irish Republican Army: Supplied to the IRA by Greek Cypriot group EOKA. See also List of individual weapons of the U.S. Armed Forces Bibliography Nelson, Thomas B. (1963). The World's Submachine Guns, Volume I. International Small Arms Publishers. Iannamico, Frank. (2004). United States Submachine Guns: From the American 180 to the ZX-7. Moose Lake Publishing. . Brophy, William S. (1989). Marlin Firearms: A History of the Guns and the Company That Made Them. Stackpole Books. References External links Modern Firearms: United Defense UD M42 submachine gun Springfield Armory Collection: UD M42, 9MM Springfield Armory Collection: UD M42, .45 ACP magazine patent submachine gun patent American Rifleman article Small Arms Review article Insurgency weapons World War II submachine guns Submachine guns of the United States World War II infantry weapons of the United States 9mm Parabellum submachine guns Weapons of the Philippine Army Weapons and ammunition introduced in 1942