Aerial_view_422

Aerial view of the United States Pentagon, the Department of Defense headquarters in Arlington, Virginia, near Washington DC, with I-395 freeway and the Air Force Memorial and Arlington Cemetery nearby. USA.

The Pentagon, in Arlington County, Virginia, across the Potomac River from Washington, D.C., is the headquarters of the United States Department of Defense. As a symbol of the U.S. military, the phrase The Pentagon is often used as a metonym for the Department of Defense and its leadership.