JF85 @ 11.22:
"Some might question why the USA joined the war in Europe"
They joined the war in Europe, both times, because Germany declared war on them, not the other way round. After Pearl Harbor, the USA declared war on Japan. Germany had a pact with Japan and so declared war on the USA.
In WW1, the USA was at war with Mexico, who had signed a pact with Germay, so Germany declared war on the USA.
TTT, prior to WW2, Churchill was a failure at everything, which is why no party wanted him in their ranks. His failures are well catalogued. To the victors go the spoils, and one of those was to choose a new government after the war. The people rejected him. The people fought the war for democracy too, not just Churchill. He was the right man at the right time. Cometh the hour, cometh the man. Cometh the General Election, lots of people at that time had already seen, and lived through, Churchills failures, and as much as he had been a brilliant, charismatic leader in the war, the people didn't want him in peacetime. The election result of 1945 speaks for itself. Some RN veterans I know were still in service at the time of the election and as they were handed their proxy vote, there were jokes from colleagues about voting for Churchill, but the overwhelming response was "Balls to Mr. Churchill", as the election result so emphatically showed.