[dfwgator]

Actually, the war we should have stayed out of was WWI. We had no dog in that fight, and if we had stayed out, there would have been no Hitler, no WWII, probably no Soviet Union. But we got snookered by British propaganda and did enter.

Britain should have stayed out. They would have been much better off. They had their Empire, and it was under no threat from Germany, even if Germany defeated France. Germany would have had a lot of internal strife to deal with if they had won, anyway.

[Wonder Warthog]

Very probably true. Unfortunately, they were bound by treaty to support their allies. The United States was not so bound.