Worldwar series

Worldwar
	Worldwar: In the Balance (1994); Worldwar: Tilting the Balance (1995); Worldwar: Upsetting the Balance (1996); Worldwar: Striking the Balance (1996); Colonization: Second Contact (1999); Colonization: Down to Earth (2000); Colonization: Aftershocks (2001); Homeward Bound (2004);
Author	Harry Turtledove
Country	United States
Language	English
Genre	Science fiction; Alternate history
Published	1994–2004
Media type	Print (hardback & paperback)

The Worldwar series is the fan name given to a series of eight alternate history science fiction novels by Harry Turtledove. Its premise is an alien invasion of Earth during World War II, with a timeline ranging from 1942 to 2031. The series includes Turtledove's Worldwar tetralogy, the Colonization trilogy, and the novel Homeward Bound. The early series was nominated for a Sidewise Award for Alternate History in 1996.