In total, during and quickly in succession of World War II, the americans built twenty four Essex class carriers out of thirty two planned, and three Midway class aircraft carriers out of six planned. For a Japanese victory to be even close to possible, the Japanese must seize Hawaii in a Kriegsmarine style attack, and do the same with Midway.Thus, the americans do not break the Japanese code. Followed by the cancellation of the attack on Sydney harbor, where the Australians got the Japanese code by detecting, then sinking the three midget submarines with sonar. Then, the Japanese must conduct long range bombing raids continously against the mainland, and destroy the Panama canal. Followed by an Invasion of the Mainland. It is impossible that the Japanese make it all the way around South America and wind their way to the Eastern United states. The only way to guarantee aan assault from both sides would be if the Germans also first focused on the Russians, along with help from the Japanese, then actually conquer the middle east, before turning their attention to the wester European Countries. This way the Germans could take Iceland, and subsequently Newfoundland and Labrador, before finally being able to operate in a pincer movement against the americans. Using their long range bombers and navy to pummel the american shipyards to oblivion before any aircraft carriers could be produced. This however, may cause WWII to last twenty years longer than it formerly did, and by then, both Germany and America would be using nukes, and pummeling the world into oblivion.