The Proteus Operation
James P. Hogan
 Originally the First World War was a complete wake-up call for the human race, leading to greater internationalism and a "Never Again" spirit towards war that would eventually wear away the differences between the various power-blocs. By the 2020s, a global League of Nations oversees a planet totally at peace. The fledgling Nazi Party, in this 'original' timeline, simply faded out after the 1923 Beer Hall Putsch. Many in the modern aristocracy, corporate dynasties, and others feel they have lost out because of the social transformations enabled by decades of peace and co-operation. This group come up with a plan to build a functional "time machine" and change history for their benefit. Their scheme is to go back as far as they can (roughly a century, to the very early 1920s) and mentor the fledgling Nazi Party. They regard the Nazis as the perfect tool for destroying the Soviet Union and establishing an elitist tyranny with which they can live the lives of luxury and entitlement they believe have been stolen from them. This 'Uptime' initiative sends 21st century advisors, armament and nuclear weapons to support Adolf Hitler. The Hitler that they seek to advise soon develops other plans. After learning about the original history from his time traveling advisors, Hitler uses these lessons to ensure that Western Europe falls swiftly, followed by droping a few of the Uptime nuclear weapons to wipe out the Soviet Union. He then destroys his end of the "time conduit" and declares independence from his former sponsors. By the 1970s, Nazi Germany and the Empire of Japan have conquered everything other than North America, Australasia, and parts of South America. Africa has suffered an enormous genocide every bit as complete as the one inflicted upon the Jews, and the Axis powers stand poised in 1975 to start a final war that the United States is bound to lose, given the military power of Nazi Germany. An organization in this altered 1975 discovers the secret behind the Nazi successes of the previous decades. The group decides that it will build its own time machine to go back and stop the present nightmare of Nazi world domination. This 1975 time machine is not as advanced or powerful as the original 2020s machine, so they can only open a gate to 1939. The plan is to establish a military alliance between the 1975 America of President John F. Kennedy of the 1939 America of President Franklin D. Roosevelt. Things go wrong, and it is up to the 1975 Uptime agents, cut off in 1939, to keep the western Allies, including the United Kingdom and the United States in the fight, while working to close off Hitler's gateway to the alternate 2020s before he gets his atomic bomb and missile advantage. In the end, they succeed, and this second "alternate timeline" they create turns out to be our own world. Historical figures in the book include Isaac Asimov, Wilhelm Canaris, Winston Churchill, Duff Cooper, Anthony Eden, Albert Einstein, Enrico Fermi, Reinhard Heydrich, Adolf Hitler, Heinrich Himmler, John F. Kennedy, Frederick Lindemann, Franklin D. Roosevelt, Leo Szilard, and Edward Teller. Of these, only Asimov and Teller were still alive when the novel was published in 1985.