The Panzer IV was indeed integrated first couple of months linked to the 2nd World War to produce the German armoured forces with a far greater safeguarded vehicle keeping a 7.5 CM cannon. It was an answer towards the restrictions of its predecessor the model III with a 5 CM cannon set alongside the risk of the enemys means, especially the soviet T 34s which were created using an arm of calibre including good armour plating. The model IV tank have now been extensively added to all fronts through the entire 2nd World War by the German Army. Many gradually improved variations was in fact produced to handle the on-going improvements with this specific opponents means.