Montgomery did become involved with NATO and favored it as a nuclear detterent towards the Soviets, but obviously that was several years after 1945.
The Japanese brass hoped that the Americans would think that an invasion of the Aleutians would be some sort of pretext towards a move on Alaska...
I am doing a paper on some of the differences between Montgomery and Patton during the war. Now, I know that Patton advocated continuing the fight...