Invasion Anthology of short stories that take place in the CoDominium Universe created by Jerry Pournelle. Part of a series of short stories and novels that is called War World series. Published 1994.

The books in the series were written by several authors. It consist of five collections of short stories and three collaborative novels. Each volume takes place in roughly chronological internal order, but starting in different time periods (for instance, CoDominium: Revolt on War World, chronologically the last collection in the series, is set during the earliest years of human settlement on Haven). Blood Feuds incorporates material that originally appeared in the short story collections. John F. Carr rejuvenated the series with the publication of War World: The Battle of Sauron, by Carr and Don Hawthorne (Pequod Press, 2007). The series is starting over with the publication of War World: Discovery (2010), edited by John F. Carr. The new books will be published in chronological order, with Discovery providing background on the first surveys and colonization. The new volumes include fresh stories intermixed with ones from the original series, providing a more complete look at the War World universe.


"Introduction" - Charles E. Gannon - On the refueling station which shares its orbit with Haven, the withdrawal of the Empire has made life very hard—but the coming of the Saurons will make it much harder.
"The Railroad" - John Dalmas? - As news of the Saurons' coming slowly spreads across Haven, its people experience a growing sense of shock and horror.
"A Better Kind of War" - Don Hawthorne - Since the Empire left, Haveners had been at war with each other. Now the Saurons had come to give them a common enemy, but old hates are hard to put aside.
"The Boatswain" - Alan Brown? - A small group of refugees seeks safety with help from an old, retired naval hero.
"The Gift of the Magi" - Charles E. Gannon - Rumors tell of a small band on Haven who still retain the old knowledge of science and technology. But they're only rumors... aren't they?
"A Little Beastliness" - Edward P. Hughes? - As the Saurons continue to hunt down and destroy all remnants of Haven's industries, many find that to survive, they must act like harmless primitives... for the rest of their lives.
"Those Who Lose" - Harry Turtledove - The Saurons are ruthless in their conquest. To them, slavery and rape are merely tools of policy.
"Kings Who Die" - S. M. Stirling - On Haven, the age of history is over. It is now an age of legends; and the leader of the newly formed HaBandari tribe must die a hero, to become a Legend that will live on and inspire others to fight.