I came up with a situation involving a repeat of World War 1 and World War 2 in the 21st century (with the current year being 2053) shortly after the close of the Italian War, which resulted in the division of Italy into the fascist north and democratic south.
India has been restyled the Great Union of Bharat, and is under a hard-right regime (being analogous to the Soviet Union), while France serves as an analogue to China, with Corsica and other various French territories being Taiwan.
The United States is both the USA and Britain at the same time, having stayed out of WW4 until Argentina thought it would be a smart idea to bomb Guantanamo Bay. (Cuba and Hawaii swapped, sort of.) The large areas of new territories were annexed from Mexico (analogous to Italy) following the conclusion of the war.
The EU and Japan are both France, while China was the Ottoman Empire and Russia was Austria-Hungary. Iran, I believe, was Germany, with a generic Hitler analogue taking over. No, before you ask, he wasn't a radical Islamist, he was a communist.
Yes, I know that means that the Axis in World War 4 consisted of Iran, Mexico, and Argentina. Don't laugh at me, I was tired when I made this and didn't really think about the logistics.
Also, Yugorussia is Yugoslavia, with Ukraine as Serbia. I don't really know why I felt the need to make it so big.
I'd continue to transcribe the long list of analogues here, but I have a feeling that nobody would bother to read it, so just ask if there's something you're confused about.