Let’s say Germany and Japan suddenly hate each other (magical intervention). Then, all pieces of land not directly controlled by Germany before the invasion of the Balkans magically disappear (this includes Axis allies such as Italy, Romania, Hungary, and even the puppet of Slovakia) along with all the people there. The exepecption are all courntries that border the Baltic Sea. The palces that are not directly controlled by Germany (such as Sweden, Finland, and the Soviet Union) will turn into impassable zones (anyone who step foot into those places instantly disappear). All German units in the disappeared places move back to Germany.
After that, the Japan home islands replace where Great Britain used to be. The IJN moves to the Atlantic. The IJA in China is moved to France. All German units in France move to Germany.
Now that Germany and Japan are now near each other and hate each other, who will win in a hypothetical war? There will be supply ships that are magically created, fueled, repaired, and crewed carrying supplies such as steel, oil and all other materials needed to conduct war to both sides. The supply ships for Japan magically appear in the Atlantic and the German supply ships magically appear in the Baltic Sea. Germany’s strength is their strength before the invasion of the Balkans in real life. Japan’s strength is their strength before the Battle Of Midway.
Now this is a very complicated way to pit World War 2 era Germany and Japan against each other, but it can be a cool scenario.
So who wins in the hypothetical war? What are the specifics? Thank you for responding in advance!