The official name of those formations were: "Armia Polska w ZSRR" (Polish Army in the USSR) from 1943–1944, "Wojsko Polskie" (Polish Troops) and "Siły Zbrojne Rzeczpospolitej Polskiej" (Armed Forces of the Republic of Poland) from 1944–1952 and from 1952 "Siły Zbrojne Polskiej Rzeczypospolitej Ludowej" (Armed Forces of the Polish People's Republic). On 7 October 1950, the anniversary of the Battle of Lenino was declared the official "Day of the Polish People's Army" by the authorities of the People's Republic.