The American invasion plans for Japan. In the event that the US would actually have had to invade the Japanese mainland. The dropping of the Atomic bombs clearly showed that millions of lives, on both sides, were saved by this seemingly catastrophic event.

Oradour sur Glane. The massacre of an entire village on 10 July 1944 by elements of "Das Reich" SS Division. In retaliation for French Resistance sabotage in the area. Its is suspected that the SS got the "wrong village" ?