Pentagon

The Pentagon houses the U.S. Department of Defense, delivering national security and defense capabilities. It maintains a formidable military, comprising the Army, Navy, Air Force, Marine Corps, and Space Force, deploying advanced systems globally. This organization deters aggression, conducts varied operations, and defends against cyber threats, constantly integrating technology to counter evolving global challenges.

The Department of Defense originated from the Department of War, established in 1789. Its modern, unified structure formed via the National Security Act of 1947, integrating military branches into the National Military Establishment. Renamed the Department of Defense in 1949, this reorganization consolidated security efforts, streamlining command and enhancing efficiency.

The Department of Defense serves the United States and its citizens, providing a vital national security framework. Its global operations foster stability and protect alliances. The organization's vision is to deter aggression, defend the nation, and achieve decisive victory. It cultivates an adaptive, superior force ready for future security challenges.