Harvard professor, Samuel Huntington, wrote a very eurocentric book some years back entitled: "Who Are We?" Looking at essential "American" characteristics, values, and ways of identifying ourselves.
Rather than consider that book, lets take a look at the recently named roster for the US National Soccer team that will be traveling to South Africa this summer to represent this country in the most popular sport in the world. More in depth article
This is America (names in parenthesis are the club team that player is currently playing for)
Viva Estados Unidos! ...que viva!