Two PODs for this what if:
1. Patton and MacArthur switch, the former is sent to the Pacific, the latter to Europe.
2. The USA, considering the Japanese are the ones who've actually attacked them directly and openly, and the rest of the Axis have only "declared war", decide to go with a Pacific First or rather, Europe Second strategy.
So, given these two things, how does WWII turn out ITTL?