First Polish Army (1944–1945)
The Polish First Army (Polish: Pierwsza Armia Wojska Polskiego, 1 AWP for short, also known as Berling's Army) was an army unit of the Polish Armed Forces in the East. It was formed in the Soviet Union in 1944, from the previously existing Polish I Corps in the Soviet Union, as part of the People's Army of Poland (LWP).
Source: Wikipedia — First Polish Army (1944–1945) (CC BY-SA 4.0)