|
Try Harry Turtledove's Colonization series (Second Contact, Down to Earth, Aftershocks, and Homeward Bound) and his Worldwar series (In the Balance, Tilting the Balance, Upsetting the Balance, Striking the Balance, and Homeward Bound). The books are based on World War II. While the various countries are fighting, suddenly an insectoid alien race appears and now the struggle has to be against the alien invaders.
|