General Background
In 1941 while invading the USSR the German generals realized that their tanks were no match for the new Soviet T34 and KV-1. While new German tanks were being developed and existing tanks upgraded there was a need for a stopgap vehicle. This would be the Marder III Tank Destroyer (English – Marder means Marten) based on the chassis of the Czechoslovak Panzer 38(t) and produced in 3 variants, Sd.Kfz.139, Ausf.H, Sd.Kfz.138 and Ausf.M, Sd.Kfz.138. These Tank Destroyers saw action on all battlefronts.