who said that at the end of WW II they fully expected to be asked to invade the Soviet Union next. After all while Stalin and Hitler had a falling out, plenty of people remembered that they had cooperated in the first few invasions in WW II, and Stalin had taken advantage of WW II to aquire a few territories that people didn't think he should have.
I don't know what the pros and cons of doing that were, but I do know that the US military was equipped for it. (We were producing significantly more armnaments than the rest of the world combined.) But manpower and exhaustion might have been more of an issue.
Cheers,
Ben