Battle of Tomaszów Lubelski
The Battle of Tomaszów Lubelski took place from 18 September to 20 September 1939 near the town of Tomaszów Lubelski. It was the second largest battle of the Invasion of Poland (Battle of Bzura was the largest) and also the largest tank battle of the campaign. It resulted in the surrender of Army Krakow on 20 Sept. 1939.