In concept , it was intended to be a support tank for use against enemy anti-tank guns and fortifications .
The Panzer IV was the brainchild of the German general and innovative armored warfare theorist Heinz Guderian .
In concept , Panzer IV was intended to be a support tank for use against enemy anti-tank guns and fortifications .
The Panzer IV was the brainchild of the German general and innovative armored warfare theorist Heinz Guderian .