No matter how fast the North Africa and Italy campaigns went, the point is that it was enough to divide the European Axis powers onto two active fronts. Unless you can tell me how the US Army could get onto the Eastern Front through Turkey and the Caucasus, or via the very Nazi-occupied Baltic Sea, there's no point in talking about the USA's influence on the Eastern Front.
The majority of the war was the Eastern Front, but the majority isn't equal to the whole. No one is saying that the Soviets weren't the biggest factor in the war, but saying that American involvement was inconsequential is inaccurate.
No matter how fast the North Africa and Italy campaigns went, the point is that it was enough to divide the European Axis powers onto two active fronts. Unless you can tell me how the US Army could get onto the Eastern Front through Turkey and the Caucasus, or via the very Nazi-occupied Baltic Sea, there's no point in talking about the USA's influence on the Eastern Front.
The majority of the war was the Eastern Front, but the majority isn't equal to the whole. No one is saying that the Soviets weren't the biggest factor in the war, but saying that American involvement was inconsequential is inaccurate.