One more thing about FDR, if you don’t mind. He wisely let his generals and admirals do all the tactical planning. He did not interfere.
Contrast that with LBJ and Bush II. Those two fools (and their civilian lackeys) had their hand in every last detail. They set the rules of engagement. They drew all the arrows on the map.
Utter stupidity! And so we lost Vietnam. And so we lost Afghanistan. Iraq? Time will tell.
He did that. He won the war then gave up half of the winnings to Stalin.