It was also the last time that the Congress utilized the War Power correctly:
"...the President is hereby authorized and directed to employ the entire naval and military forces of the United States and the resources of the Government to carry on war against the Imperial Government of Japan; and, to bring the conflict to a successful termination, all the resources of the country are hereby pledged by the Congress of the United States.
The thing with "war" and "Congress" is this: Congress (in the original scheme) represents the People (House) and the States (Senate). Without the agreement of both, wars cannot be won.
Well put; I believe it is also why the draft is history.
Some countries maintained mandatory military service long after our draft ended, but they didn’t send the conscripts all over the world “nation-building”. I don’t know why anyone would answer a draft call-up today if the US wasn’t attacked on its own soil.