USAD The Pentagon

**USAD The Pentagon** is not a traditional military unit but serves as the headquarters of the United States Department of Defense. Completed in 1943, The Pentagon is located in Arlington, Virginia, and is one of the world’s largest office buildings. It houses the offices of the Army, Navy, Air Force, and Marine Corps leadership, facilitating command and control of U.S. military operations worldwide. Throughout its history, The Pentagon has coordinated U.S. military efforts during major conflicts, including World War II, the Korean War, the Vietnam War, and the Global War on Terrorism.