Zygmunt Henryk Berling was a Polish general and politician. He fought for the independence of Poland in the early 20th century. Berling was a co-founder and commander of the First Polish Army, which fought on the Eastern Front of World War II.

The Polish First 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). The First Army fought westward, subordinated to the Soviet 1st Belorussian Front, during the offensive against Nazi Germany that led to the capture of Warsaw in January 1945, and the capture of Berlin in May 1945.