If the Axis had won the war and took over the entire world... Do you believe they will be at peace with each other for long? Judged by the nature of the Axis powers. Both Germans and Japanese think they are superior beings. The Germans think they are a master race, even far beyond the other Europeans, while the Japanese think they are far superior than everyone else including other Asians. This alone can't get them alone for very long. They would eventually having a conflict amongst themselves. And it possibility happen not long after they have "conquered the world". In this case, they would have a full scale global war, which I believe Germany should have the advantage on the land especially on the Eurasia continent. Since Germans fought their war through armored forces of allies, their tanks were upgraded continuously and they were superior with their Tiger II, Tiger, Panther, etc. Japanese forces had tanks from 1930s era, and they were no match for even Sherman. At the sea, it might be a different story. Japanese navy with carrier groups should have a lot more experience than the Germans, and as an island nation, Japan's navy is huge compare to Germans'. However, I predict before they can take each other out, there will be a lot of rebels among the countries previously being taken over by them. These rebels could take place all over the world away from the main conflict between the two foes. As they would see the fighting between the two Axis powers as an opportunity. In the end, it can be hard to predict the "final" outcome. What do you think might happen?