The United States is a real-world location in the Marvel Cinematic Universe. It is a country situated in the North American continent, sitting between Canada and Mexico. It is made up of fifty states; forty-eight in-land and two separated (Alaska and Hawaii).
The United States is featured prominently in the Marvel Cinematic Universe, with many superheroes and supervillains having been born and raised there. It is also the site of infamous battles, the biggest of them all: the Battle of New York, when the Chitauri invaded, which revealed the existence of aliens and their technology, superpowered humans, and the peacekeeping organization of S.H.I.E.L.D.