In the extraordinary Worldwar tetralogy, set against the backdrop of the World War II, Harry Turtledove, the "Hugo-winning master of alternate SF" (Publishers Weekly), wove an explosive saga of world powers locked in conflict against an enemy from the stars. Now he expands his magnificent epic into the volatile 1960s, when the space race is in its infancy and humanity must face its greatest challenge: alien colonization of planet Earth. Yet even in the shadow of this inexorable foe, the United States, the Soviet Union, and Nazi Germany are unable to relinquish their hostilities and unite against a massive new wave of extraterrestrials. For all the countries of the world, this is the greatest threat of all. This time, the terrible price of defeat will be the conquest of our world, and perhaps the extinction of the human race itself.

In 1942 Hitler led the world's most savage military machine. Stalin ruled Russia while America was just beginning to show its strength in World War II. Then, in Harry Turtledove's brilliantly imagined Worldwar saga, an alien assault changed everything. Nuclear destruction engulfed major cities, and the invaders claimed half the planet before an uneasy peace could be achieved. A spectacular tale of tyranny and freedom, destruction and hope, Colonization takes us into the tumultuous 1960s, as the reptilian Race ponders its uneasy future. But now a new, even deadlier war threatens. Though the clamoring tribes of Earth play dangerous games of diplomacy, the ultimate power broker will be the Race itself. For the colonists have one option no human can ignore. With a vast, ancient empire already in place, the Race has the power to annihilate every living being on planet Earth . . .

Set in the same universe as the Worldwar series, Colonization: Aftershocks brings us to Earth in the 1960s, where four superpowers rule: the United States, Russia, Nazi Germany, and the aliens of the Race. The arrival of the aliens shot Earth technology forward at a dizzying rate—the world of 1960 includes routine space shuttle traffic, computers on every desk, and other high tech advancements. Aftershocks reveals that it was the United States that launched the nuclear offensive against the aliens, and when the aliens learn the truth, Indianapolis disappears in nuclear fire. In alien-held China, a full-fledged rebellion is launched, and in Poland, a nuclear bomb goes missing—held by Jewish forces who seek to use it against the Nazis.The nations of Earth begin to realize that their only hope in holding back the aliens will be to work together. Because separately, they may face extinction. About the Author: Harry Turtledove is a Hugo Award-winning and critically acclaimed writer of science fiction, fantasy, and alternate history. His novels include The Guns of the South, How Few Remain—winner of the Sidewise Award for Best Novel—and the Worldwar tetralogy. The Great War: American Front was chosen by Publishers Weekly as one of the Best Books of 1998.