Alternate Wars — Gregory Benford

What would have happened if history has been different: If the major events that shaped our times had occurred in a different way - or not at all? In this thought-provoking volume, eleven outstanding science fiction writers and one legendary statesman alter the past in order to better see the present. Froma Trojan War in which Helen surrenders, to a Civil War fought with robots, from a World War I in which Teddy Roosevelt tries to capture the glory of San Juan Hill, to a World War II in which the race is not for atomic weapons but for orbital rockets, these bold excursions in time depict bizarre new worlds - oddly familiar, disturbingly different - a rare glimpse of WHAT MIGHT HAVE BEEN.