Nebula Award-winner Esther Friesner, Hugo Award-winner Harry Turtledove, Elizabeth Moon, David Weber, and other top names in science fiction imagine how history might have been different if its greatest generals had commanded each other's armies. Original.

A new collection of alternate history stories speculates about how world history would have been changed if the great battles, from the Spanish Armada to Pearl Harbor, had been fought under different circumstances. Reprint.