The campaign opened on 22 June 1941 , with Guderian urging his divisions forward at breakneck speed .
For Operation Barbarossa , the 3rd Panzer Division was assigned to the XXIV Panzer Corps , itself part of the Second Panzer Group , commanded by Heinz Guderian .
The campaign opened on 22 June 1941 , with Heinz Guderian urging Heinz Guderian 's divisions forward at breakneck speed .
For Operation Barbarossa , the 3rd Panzer Division was assigned to the XXIV Panzer Corps , itself part of the Second Panzer Group , commanded by Heinz Guderian .