When German forces attack Poland on 1 September 1939 Polish Armed Forces use small numbers submachine guns. Polish army use 52 Mors wz. 39 Submachine guns and 10 KP/-31 Suomi submachine guns (Suomi was used in 1 Military Police Battalion in Warsaw). Polish police use 50 KP/31 Suomi Submachine guns, 50 Thompson M1921 submachine guns and 30 Thompson M1928 submachine guns. Under German occupying Polish resistance made Polish STEN, Błyskawica, Kis, pm Charoszmanów, KOP-PAL, Bechowiec-1 and Bechowiec-2 submachine guns. After WWII Soviet PPSh-41 and PPS-43 was accepted to use in Polish Armed Forces. In June 1950 PPSh-41 production commenced in Radom State Arsenal, in June 1951 start PPS-43 production in Radom State Arsenal and in late 1952 pm wz. 43/51 (Polish version PPS-43) production commenced in Radom State Arsenal. In 1965 Polish PM-63 RAK submachine gun was accepted to use in Polish Armed Forces and in late 80ties Polish PM-84 Glauberyt submachine gun was accepted to use in Polish Armed Forces. In 1994 Polish PM-84P submachine gun was accepted to use in Polish Armed Forces, gun completly replaced PM-84, but same numbers of PM-63 RAK is still remain in service.