The USA hasn't won a single war since they were part of the Allies in WWII. However you would never know that from US rhetoric. They have used and abused allies every year since to maintain their elevated position in the world which has led to Americans really believing that their washed-up has-been of a country is world best at everything when it is so obviously is not. Trump, being either dumber than the average American, or seeing the opportunity to fleece the American people, or both, bought into the idea that the US could easily overthrow Iran and couldn't understand that it would be the same quagmire that was Iraq, Afghanistan, etc.