Worldwar Series by Harry Turtledove

War seethed across the planet. Machines soared through the air, churned through the seas, crawled across the surface, pushing ever forward, carrying death. Earth was engaged in titanic struggle. Germany, Russia, France, China, Japan: the maps were changing day by day. The hostilities spread in ever-widening ripples of destruction: Britain, Italy, Africa...The fate of the world hung in the balance. Then the real enemy came... moreWar seethed across the planet. Machines soared through the air, churned through the seas, crawled across the surface, pushing ever forward, carrying death. Earth was engaged in titanic struggle. Germany, Russia, France, China, Japan: the maps were changing day by day. The hostilities spread in ever-widening ripples of destruction: Britain, Italy, Africa...The fate of the world hung in the balance. Then the real enemy came. Out of the dark of night, out of the soft glow of dawn, out of the clear blue sky came an invasion force the likes of which Earth had never known - and worldwar was truly joined. The invaders were inhuman and they were unstoppable. Their technology was far beyond our reach, and their goal was simple. Fleetlord Atvar had arrived to claim Earth for the Empire. Never before had Earth's people been more divided. Never had the need for unity been greater. And grudgingly, inexpertly, humanity took up the challenge. In this epic novel of alternate history, Harry Turtledove takes us around the globe. We roll with German panzers; watch the coast of Britain with the RAF; and welcome alien-liberators to the Warsaw ghetto. In tiny planes we skim the vast Russian steppe, and we push the envelope of technology in secret labs at the University of Chicago. Turtledove's saga covers all the Earth, and beyond, as mankind - in all its folly and glory - faces the ultimate threat; and a turning point in history shows us a past that never was and a future that could yet come to be... less

NO ONE COULD STOP THEM--NOT STALIN, NOT TOGO, NOT CHURCHILL, NOT ROOSEVELT . . . The invaders had cut the United States virtually in half at the Mississippi, vaporized Washington, D.C., devastated much of Europe, and held large parts of the Soviet Union under their thumb.But humanity would not give up so easily. The new world allies were ruthless at finding their foe's weaknesses and exploiting them... moreNO ONE COULD STOP THEM--NOT STALIN, NOT TOGO, NOT CHURCHILL, NOT ROOSEVELT . . . The invaders had cut the United States virtually in half at the Mississippi, vaporized Washington, D.C., devastated much of Europe, and held large parts of the Soviet Union under their thumb.But humanity would not give up so easily. The new world allies were ruthless at finding their foe's weaknesses and exploiting them.Whether delivering supplies in tiny biplanes to partisans across the vast steppes of Russia, working furiously to understand the enemy's captured radar in England, or battling house to house on the streets of Chicago, humankind would never give up.Yet no one could say when the hellish inferno of death would stop being a war of conquest and turn into a war of survival--the very survival of the planet . . . less

Communist China, Japan, Nazi Germany, the United States: they began World War II as mortal enemies. But suddenly their only hope for survival--never mind victory--was to unite to stop a mighty foe--one whose frightening technology appeared invincible. Far worse beings than the Nazis were loose. From Warsaw to Moscow to China's enemy-occupied Forbidden City, the nations of the world had been forced into an uneasy alliance since humanity began its struggle against overwhelming odds... moreCommunist China, Japan, Nazi Germany, the United States: they began World War II as mortal enemies. But suddenly their only hope for survival--never mind victory--was to unite to stop a mighty foe--one whose frightening technology appeared invincible. Far worse beings than the Nazis were loose. From Warsaw to Moscow to China's enemy-occupied Forbidden City, the nations of the world had been forced into an uneasy alliance since humanity began its struggle against overwhelming odds. In Britain and Germany, where the banshee wail of hostile jets screamed across the land, caches of once-forbidden weapons were unearthed, and unthinkable tactics were employed against the enemy. Brilliantly innovative military strategists confronted challenges unprecedented in the history of warfare. Even as lack of fuel forced people back to horse and carriage, physicists worked feverishly to create the first atomic bombs--with horrifying results. City after city joined the radioactive pyre as the planet erupted in fiery ruins. Yet the crisis continued--on land, sea, and in the air--as humanity writhed in global combat. The tactics of daredevil guerrillas everywhere became increasingly ingenious against a superior foe whose desperate retaliation would grow ever more fearsome. No one had ever put the United States, or the world, in such deadly danger. But if the carnage and annihilation ever stopped, would there be any pieces to pick up? less

At the bloody height of World War II, the deadliest enemies in all of human history were forced to put aside their hatreds and unite against an even fiercer foe: a seemingly invincible power bent on world domination.With awesome technology, the aggressors swept across the planet, sowing destruction as Tokyo, Berlin, and Washington, D.C., were A-bombed into submission. Russia, Nazi Germany, Japan and the U.S. were not easily cowed, however... moreAt the bloody height of World War II, the deadliest enemies in all of human history were forced to put aside their hatreds and unite against an even fiercer foe: a seemingly invincible power bent on world domination.With awesome technology, the aggressors swept across the planet, sowing destruction as Tokyo, Berlin, and Washington, D.C., were A-bombed into submission. Russia, Nazi Germany, Japan and the U.S. were not easily cowed, however. With cunning and incredible daring, they pressed every advantage against the invader's superior strength, and, led by Stalin, began to detonate their own atom bombs in retaliation.City after city explodes in radioactive firestorms, and fears grow as the worldwide resources disappear; will there be any world left for the invaders to conquer, or for the uneasy allies to defend?While Mao Tse-tung wages a desperate guerrilla war and Hitler drives his country toward self-destruction, United States forces frantically try to stop the enemy's push from coast to coast. Yet in this battle to stave off world domination, unless the once-great military powers take the risk of annihilating the human race, they'll risk losing the war.The fatal, final deadline arrives in Harry Turtledove's grand, smashing finale to the Worldwar series, as uneasy allies desperately seek a way out of a no-win, no-survival situation: a way to live free in a world that may soon be bombed into atomic oblivion. less