United_States | leaderTitle | President_of_the_United_States United_States | ethnicGroup | White_Americans ALV_X-1 | countryOrigin | United_States United_States | capital | Washington,_D.C. United_States | anthem | The_Star-Spangled_Banner
Washington D.C. is the capital of the United States, where the ALV X-1 originated, and its national anthem is the Star Spangled Banner. The title of the leader of United States is The President of the United States, and White Americans are one of its ethnic groups.