Pentagon

The Pentagon is the headquarters of the United States Department of Defense, located in Arlington, Virginia. It is a large five-sided building and serves as the central command for the military, overseeing the Army, Navy, Air Force, and Marines. The Pentagon plays a crucial role in national security and defense policy, housing thousands of military and civilian employees. It also symbolizes the U.S. military's strength and operations. Since the September 11 attacks in 2001, it has been an important site for discussions about national security and military strategy.