23 July 1942 Hitler issues Directive # 45 One of the most important orders given in WW II. Directive #45 splits up Army Group south. Hitler's generals can not believe what they are reading... Hitler, anxious to break into the Caucasus quickly, ordered the transfer of 4th Panzer Army to Army Group A on July 17th. As a result, 4th Panzer Army was not utilized by either army group for a critical two weeks at the end of July. Army Group B's slow advance during this period was directly attributable to its loss of the panzer army while Army Group A did not gain any further advances because of its temporary availability. On July 29th 4th Panzer Army was returned to Army Group B. von Kleist remembered : "The 4th Panzer Army was advancing on my left. It could have taken Stalingrad without a fight, at the end of July, but was diverted to the south to help me crossing the Don. I did not needs it's aid, and merely congested the roads I was using. When it turned north again, a fortnight later, the Russians had gathered just sufficient forces at Stalingrad to check it." As well late in July Hitler transferred Manstein's five divisions from the Crimea to the Leningrad front instead of the Caucasus, assuming that the Russian were almost beaten. What if all AGS troops were sent towards Stalingrad as well as those Manstein´s divisions?