united_states | leadername | barack_obama <tsp> united_states | capital | washington,_dc <tsp> 1634:_the_ram_rebellion | country | united_states <tsp> united_states | ethnicgroup | native_americans_in_the_united_states <tsp> 1634:_the_ram_rebellion | precededby | 1634:_the_galileo_affair <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 united states is led by barack obama. has a native american ethnic group and the capital is washington d.c.1634: the galileo affair preceded the u.s. written 1634: the ram rebellion.the united states in the united states the '