You are ignorant of history and doomed to repeat the mistakes of leaders like Neville Chamberlain.
Peacekeeping and nation building are what solved the perpetual wars on the European Continent that stemmed from anicent wars and ethnic hatred.
You may think defeating Germany and Japan were a waste of our troops lives, but I don't.
Save the nonsense. There’s no similarity to our War in Iraq and World War II, a war in which we fought two major military powers who, when we entered the war, had already conquered a huge portion of the world. Our occupation of both Germany and Japan, two homogeneous and industrial countries, were an obvious necessity if for no other reason than preventing further Soviet advances.