Battle of Tomaszów Lubelski took place from 17 September to 26 September 1939 near the town of Tomaszów Lubelski. It was the second largest battle of the Invasion of Poland and also the largest tank battle of the campaign. It resulted in the destruction of the Polish forces.
Polish forces composed of Army Lublin, Army Kraków, Army Modlin, Operational Groups Wyszków, Narew and Anders Cavalry attempted to break through the German positions around Tomaszów towards the Romanian Bridgehead area.
Only the cavalry group under general Władysław Anders was successful; most of the remaining Polish forces failed to break through and capitulated around 26 September.
