CH x Avatar WW2

(I'm sorry guys, I was dying for my fandoms to cross over) Anyways, it's countryhumans WW2, but they can bend 😘✌️ so basically here's the tribes Soviet Union: Fire USA: Earth Britain: Air Vichy France: Water China: Water Japanese Empire: Air Nzi Germany: Fire Fascist Italy: Earth (add your own AU to it, I don't wanna force my AU, especially cuz it's very depressing)