Striking the Balance by Harry Turtledove

Turtledove's grand tetralogy of an alternate WWII interrupted by an alien invasion draws to a satisfactory conclusion in this follow-up to Upsetting the Balance, and with a few surprises to boot. The Chinese woman Liu Han, for example, is seen climbing the hierarchy of the Chinese Communist Party as it comes under the control of Mao Zedong. Moishe Russie helps negotiate the final armed truce between the alien Lizards and the humans, with the Lizards withdrawing from most hum...