Battle of Tomaszów Lubelski
1939 CE.
Shown on the map at 50.450°, 23.417°.
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 (the 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 September 1939. The battle can be divided into two phases - from 19 to 20 September and from 21 to 26 September. They are often referred to in French sources as the First and Second battle of Tomaszów, respectively.
Text from the Wikipedia article Battle of Tomaszów Lubelski, licensed CC BY-SA 4.0.