Complex sentence: Not fully formed by September 1, it was nonetheless partially combat ready and immediately rushed into battle during the Polish September Campaign; following heavy loses during the Battle of Tomaszów Lubelski, was disbanded on September 20,1939.
Split into simpler sentences: Not fully formed by September 1, it was nonetheless partially combat ready and immediately rushed into battle during the Polish September Campaign. Following heavy loses during the Battle of Tomaszów Lubelski, it was disbanded on September 20,1939.