Why was the Pentagon built? Just before World War II, the U.S. Department of War was in disarray. Its 24,000 personnel were dispersed in 17 buildings in and around Washington, D.C. With war ...

Defense Secretary Pete Hegseth said Monday the Pentagon will pursue an Iron Dome-style missile defense system for the United ...

Carter’s book, Inside the Five-Sided Box: Lessons from a Lifetime of Leadership in the Pentagon, comes out today. Ash Carter, former U.S. defense secretary, discusses with James M. Lindsay what ...

Adversaries such as China and Russia have penetrated critical private sector U.S. infrastructure networks and plan to attack them in a future war, according to a new report by the Pentagon's ...

This picture taken 26 December 2011 shows the Pentagon building in Washington, DC. The Pentagon, ... [+] which is the headquarters of the United States Department of Defense (DOD), is the world's ...