On Hitler’s 50th birthday, April 20, 1945, he exhorted his fellow goose-steppers in the Bunker, “Just think of Leonidas and his 300 Spartans.” Adolf had ten unpleasant days to live.

A German historian recently published a book “Briefe An Hitler” — “Letters to Hitler” — that spotlights 300 letters sent to Nazi dictator Adolf Hitler. The writings give a unique ...