Days of infamy

the long version

Turtledove presents a starkly realistic view of what might have been had the Japanese followed the bombing of Pearl Harbor with a land invasion and occupied Hawaii. U.S. airman Fletch Armitage, held in a POW camp under horrifying conditions (the Japanese never signed the Geneva Convention), keeps hope alive even as he slowly starves. His ex-wife, Jane, keeps her head down in occupied Wahiawa, tending her assigned garden plot and hoping she won't be raped.