Earth but Rearranged

This world is based on earth in the 1950s but sort of re-arranged, in that all of the countries are based on other countries but don't have the same names and are in different places on the map. The powers in this world consist mostly of the Avalonian Empire, which is based on Great Britain but like imagine the whole imperialism thing had worked out for them in the long run. They have subjugated most of the northern continent, which is essentially Eurasia. They feature as the main antagonist group, and the story will focus on it's destruction. The other power is located in the southern continent- Evita. Evita is basically the Americas. This place is very much based on 50s America, complete with housewives and racism. This world is incredibly militaristic.