Will the extra armoured vehicles made available to the Germans, by their withdrawal from North Africa, make a difference to their campaign in the Soviet Union in 1942, to which the easy answer is yes. However this will not cause a collapse of the Soviets, as the fundamental problems that the Germans suffered from, both from their entry into the war and their subsequent decision to invade the Soviet Union, still exist. Germany like all of the principle axis powers started the war without a secure supply and vertualy unlimited supply of oil. Even the UK, which had a minuscule domestic oil supply, and despite the best efforts of the Kriegsmarine was able to import from her own overseas territories, foreign territories were she controlled the oil industry, such as Iran, and others where she was able to purchase oil, plus America. More petroleum products than the Germans were able to throughout the war in any one year, and had in reserve more petroleum than the yearly consumption of Germany. Hitler had a fantasy that all he had to do, was knock on the door and the rotten Soviet system would collapse in short order. This failed to take into account the following factors, and was based on his and his fellow Nazis along with the German Generals total lack of knowledge and understanding of what they faced.
Starting at the top, they were about to take on a campaign against a far larger army, which not only had a massive potential reserve of troops, but also thanks to the Soviet Japanese treaty could concentrate all of its forces against just one enemy. Unlike the Germans who had yet to defeat the British and faced a second front, if only at sea and in the air for now. Not forgetting that the British were up to their historic tricks of raiding the European coastline, thus requiring the Germans to maintain significant military forces in the west. Note that ITTL and OTL, the Germans didn’t manage to raid the British Isles from the sea once, and once they were committed to the invasion of the Soviet Union, were only able to conduct tip and run air attacks. Where as the British conducted numerous raids against them and were steadily building up their strategic bombing operations, which required the retention of aircraft and anti aircraft guns. The Germans were reliant on a quick victory, given just how inadequate their supply and logistics were, didn’t have a plan B to hand in the event that plan A didn’t work. And they totally failed to consider the political situation in the Soviet Union. Stalin was a ruthless dictator prepared to sacrifice millions of lives to achieve his goals, and he had at his side one of history’s most effective secret police commanders, Beria. Who despite being a totally vile creature with unspeakable personal vices, was not only in many cases pragmatic, he increased the rations of the slave labourers in the Gulags, because he wanted them to work not just starve to death. But also knew just how far he could go without setting off a counterrevolution, and thus his own downfall, along side that of his fellow members of the apparatchiks .
Stalin and the remainder of the apparatchiks, having seen and in many cases taken part in the treatment of the Tsar, his family and numerous others of the old order. Knew very well what the fate of they and their families would be if they lost their hold on the of reins of power and they were subjected to the wrath of the mob. If they were lucky they would get put up against a wall and be shot, or receive a bullet in the back of the head, either before or after their family. However they stood a good chance of being torn limb from limb, or strung up from the nearest lamppost, in front of a braying mob. These men were riding the back of a very hungry Tiger and if they once lost control were doomed, and surrendering to the Germans was not an option. They were prepared to sacrifice any number of their own people, force them into inhumane conditions to retain their hold on power. An American factory worker expected to receive animal protein three times a day and have at least one day of a week and expect in the most unusual conditions work a 12 hour day. His/hers British counterpart expected animal protein twice a day and expected a day off each week, and while working a 10 to 12 hour shift, also had 20 hours a week of additional duties, such as Home Guard, Civil Defence or Fire Watching. Whereas the Soviet worker would be lucky to see animal protein once or twice a week, didn’t get a day off and was expected to put in a minimum 12 hour shift. Even during wartime the British maintained a school leaving age of 15, and unless you were an apprentice you couldn’t go down a coal mine until you were 18, and no female worked down a coal mine. In the Soviet Union you had 10 year olds working on the land, in factories and down the mines, male and female. The Soviet leaders were prepared to rule their population was a rod of steel, and were never going to give up the fight, as it was win or die.
RR.