1943
The Germans concentrate all effort on relieving von Paulus at Stalingrad, and succeed in pushing further east, though barely. Paulus orders a break-out and is then court-martialled and hanged. Following this, axis forces retreat west and then counterattack when the soviets had overextended themselves. The Italian army in Russia is not destroyed (yet).
Tunisia meanwhile is not contested, leading to an early allied win in Africa. However, having avoided the loss of so many men, the Germans and Italians manage to defeat the landings in Sicily.
Citadell is never atempted, and the Soviets grind west at a slower pace.
1944
The allies finally secure Sardinia and Corsica, though plans to land in Italy are canceled to make way for Overlord, which goes ahead succesfully.
Secondary landings take place in S France, and by December, the axis has been pushed to the Alps and the Franco-German border.
More Germans and less Russians means Romania west of the Carpathians is taken only in December. The axis though manage to block the mountain passes.
Mussolini's government, backed by large numbers of German troops present in the country, holds together.
1945
Silezia and the Ruhr are taken by the Soviets and Allies respectively, while Berlin is surrounded and stormed by the Red Army. Hitler commits suicide, and the Germans surrender.
HOWEVER, Fascist Italy, Hungary, Slovakia, Croatia and a rump Romania had not yet been occupied. What effects does this have on the post-war world ?