united_states | leadertitle | president_of_the_united_states <tsp> united_states | leadername | barack_obama <tsp> united_states | demonym | americans <tsp> 1634:_the_ram_rebellion | country | united_states <tsp> united_states | ethnicgroup | native_americans_in_the_united_states <sep> the united states of america (usa or usa), commonly known as the united states (us or us) or america, is a country primarily located in north america it consists of 50 states, a federal district, five major unincorporated territories, nine minor outlying islands, and 326 indian reservations the united states is the world's third-largest country by both land and total area 
the native americans are an ethnic group in the united states where the population are known as americans. the country is led by president barack obama and is where 1634 the ram rebellion originates.the united states is the world's third-largest country by both land and total area