The Soviet Union could have won World War 2 alone.

In our timeline Case Blue ends the same time as the US and the British is on the verge of securing Africa from the Axis and the rich oil fields in the Middle East. Same time as Kursk, The British having broke German codes informs the exact time and place of the battle which allows the Soviets to prepare, mean while the other fronts siphons units from the east to the west, over 60% of German air power is on the west attempting to defend Germany from the vast air forces of the US and the British [1]. The Invasion of Italy and her surrender begins. The Soviet Union received from the west 92.7% of locomotive and rail cars, 2/3 of their truck strength, 13% of aircraft 8% in tanks of their total wartime production. They received over 50% of ordnance ammunition, artillery shells, mines ect, and almost 60% of aviation fuel as well. [2] [3]This enabled the Soviet Union to focus on tank and aircraft production instead of trains, jeeps, and trucks. The aid provided by the west was seen as absolutely vital to Soviet victories on the eastern front and this opinion is shared by Soviet Marshal G. K. Zhukov, Nikita Khrushchev, and Joseph Stalin. Apart from the material aid the west took out Italy and crippled German war effort, infrastructure, communication systems, transportation, and their oil resources. However, in this new terrifying history Britain lost in the Blitz and surrenders to the Axis. the United States doubles down its isolationist policies and stays neutral. This changes the entire scope of the war irreversibly to the Axis advantage. It opens up the vast oilfields of Africa and Middle East to the Axis to augment what they already have in Europe, decreases the need to build up naval assets to focus on tanks, aircraft etc. Removes the future problems of deploying over 1 million troops to defend Germany from the air power of the west. Another million to battle the west across western Europe. Italy never falls to the west. Spain would even happily join the fight against the Soviet Union. Such circumstances sees the Soviet Union having to face 5-6 million more Axis troops not including what Spain would send to augment their strength there. This would see the Axis having all the oil it needs to see their adventure into the Soviet Union succeed, super weapon projects, communication, transportation, wartime production etc untouched from the west. A vast increase in production levels. All their brilliant strategic commanders not being divided to battle elsewhere in the world. In turn, it would see the Soviet Union without information to know, when and where the enemy will attack and how many. A vast reduction in tank and aircraft production without the resource shipments from the west. More men pouring into the Soviet Union since there is no front in Africa, the Middle East, western Europe, and the Atlantic. The burden of war of attrition would be harder on the Soviet Union then it would be on the Axis. Their staggering losses would increase significantly with less everything that they had in our timeline. [1] . https://en.wikipedia.org... [2] . https://en.wikipedia.org... [3] . https://en.wikipedia.org...