The Sturmgesch?tz III, Sd.Kfz. 142 almost always named shortened to StuG III, was a formidable assault gun supplied to the German Army during World War II, made from the hull of the Panzer III medium tank whose it borrowed entire rolling train, tracks, etc. The installation of the main armament was arranged in rigid casemate instead of a revolving turret. This fact, obviously, reduced the capabilities of the vehicle, as it was a self-propelled gunner (but increasingly it was also used in an anti-tank version). However, the vehicle was easy to produce and cheaper, so much so that in fact it became the Wehrmacht's trump card by being produced in more than 10,000 units.