The Department of Defense is America's largest government agency. Our mission is to provide the military forces needed to deter war and ensure our nation's security.

The United States Department of Defense (DoD, [2] USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising the five U.S. armed services, the Army; Navy; Marines; Air Force; Space Force; the Coast Guard for some purposes, and related functions and agencies.

The mission of the Department of Defense is to provide a lethal Joint Force to defend the security of our country and sustain American influence abroad.

The Department of Defense (DOD) provides the military forces needed to deter war, and to protect the security of the United States.

The United States Department of Defense (DoD) has a complex organizational structure. It includes the Army , Navy , the Marine Corps , Air Force , Space Force , the Unified combatant commands , U.S. elements of multinational commands (such as NATO and NORAD ), as well as non-combat agencies such as the Defense Intelligence Agency and the ...

6 days ago · The Department of Defense provides the military forces needed to deter war and ensure our nation's security. The U.S. Secretary of Defense oversees the Department of Defense and...

Jan 26, 2025 · U.S. Department of Defense (DoD), executive division of the U.S. federal government responsible for ensuring national security and supervising U.S. military forces. Based in the Pentagon, it includes the Joint Chiefs of Staff, the departments of the U.S. Army, U.S. Navy, and U.S. Air Force, and

To provide insightful and forward-thinking national security advice and support to the Secretary of Defense and Department of Defense leadership on matters affecting strategy, planning,...

Jan 20, 2025 · (b) The Armed Forces of the United States have played a long and well-established role in securing our borders against threats of invasion, against unlawful forays by foreign nationals into the ...

Jan 22, 2025 · The Department of Defense is an agency of the executive branch tasked with maintaining and overseeing the military forces of the United States. Its primary functions include overseeing the Army, Navy, Air Force, Marine Corps, and Space Force; creating military policies; and managing the defense budget. It was established in 1947.