Not the United States of America, but the United States of Austria were actually a serious proposal: https://en.wikipedia.org/wiki/United_States_of_Greater_Aust

Not the United States of America, but the United States of Austria were actually a serious proposal: https://en.wikipedia.org/wiki/United_States_of_Greater_Austria https://en.wikipedia.org/wiki/United_States_of_Greater_Austr... The issue usually isn't ethnic tensions, it's usually disenfranchisement expressing itself through nationalism.