If the winter had been mild

One day, the president of the United States declares a state of emergency as UFOs are reported over Wyoming. Aliens soon land in the Soviet Union. Meanwhile, the Germans are quickly advancing past Moscow, while the Japanese attack the western world. The winter of 1941 to 1942 is relatively mild; meanwhile, the winter in America is extremely cold. This allows for great gains by the Americans against the Japanese, but the fate of the Japanese is much different in Russia. The Third Reich creates a special plane that can fly in space, to carry nuclear weapons. This plane flies down in an extremely broad swoop, dropping nukes in various locations in Russia, in a 320 miles swath, each explosion separated by approximately 12 miles. Russia creates hypersonic planes that drop troops deep into enemy territory, to the west of Russia. This is a gamble that will either cause the Red Army to disintegrate or lead them to victory. Meanwhile, the Japanese assembly their forces into a fractal-like pattern, with a large main group of troops surrounded by three smaller groups, each of which is surrounded by three other groups, and so on. While the Russians are not successful against the Germans in the west, or Europe, their plan seems to be causing the Germans in Russia to fall apart in some ways. Meanwhile, the Japanese have now reached Alaska. The Americans decide to drop tiny atomic bombs all around Alaska, in a round perimeter, to create a restricted zone that, if successful, would create an exclusion zone from which a large number of Japanese troops couldn't escape from. This is the beginning of a great story.