A single US Air Craft Carrier could utterly destroy North Korea. Now whether or not we should destroy is debatable. Is it moral to decimate an army and cities/towns of essentially innocent slaves?

Well, generally when a president presses the red button he sends a signal to a launch sight to tell the key holders what to do. Ultimately, its up to the people with the keys if they want to turn them or not.

Of course science and religion can co-exist. In fact religion can be the very reason one becomes a scientist and science has brought many to religion.

Hitler was not a communist. He was a nationalist socialist. Hitler was basically the brown shirt of Germany.