During the Cold War, and in the past decade, U.S. policy often viewed nuclear weapons apart from the rest of the U.S. military establishment, with nuclear weapons serving to deter a global nuclear conflict with the Soviet Union or Russia.
The central powers consisted mostly of nazi Germany, Italy, Japan, Romania, Bulgaria, and Hungary.
Allied powers consisted of United States, Great Britain, Russia (USSR), France, Poland... pretty much the rest of the world. (This is for WW2 if you want WW1 message me or comment on this). Hope this helped!
When counting the population in states 3/5th of slaves would be counted toward population when getting seats/places in the House of Representatives