As you may recall Truman was extremely unpopular when he finally left Washington in 1953 thanks largely to the Korean War. Today however he is thought to have been a solidly good president a 'Near Great' even in the terminology of those surveys of historians they do every now and then.
What Romantic terminology called genius or talent or inspiration is nothing other than finding the right road empirically following one's nose taking shortcuts.
Do you know what a soldier is young man? He's the chap who makes it possible for civilised folk to despise war.