Seventy years ago, on April 29, 1945, the forward battalions of Rainbow Division, 42nd Infantry, were moving swiftly toward Munich. Confident and optimistic, they had survived four months of costly and bitter combat, and soon, it would all be over. But then the road led to Dachau and the worst day of the war. In their collected memoirs, the Rainbow soldiers, almost half of whom were only eighteen, nineteen, or twenty years old, tell how they were...