Department of Defense (United States)

The Department of Defense (DoD) is the U.S. government agency responsible for coordinating and overseeing national security and armed forces. It manages the Army, Navy, Air Force, and Marine Corps, ensuring the country is prepared to defend itself against threats. The DoD develops military policy, allocates resources, and supports operations while working closely with other government agencies and international partners. Its primary mission is to protect the United States and its interests, maintain peace, and respond to crises around the world.