What's in a name?

Mr Trump keeps muttering about changing the name of our Defense Department back to what it was from 1789 to 1947, the honest and robust Department of War. Well, why not? The US never lost a war before 1947, while it more recently seems that we just can't win one. There are footnotes, of course: the War of 1812 was a bit iffy; the Korean War was more of a draw than a loss; and, okay, the old War Department didn't include the US Navy. But what the heck: a name change can't hurt, as long as the new Secretary of War doesn't include Al Jazeera in his classified chats.