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  1. United States Department of Defense - Wikipedia

    Beneath the Department of Defense are three subordinate military departments: the Department of the Army, the Department of the Navy, and the Department of the Air Force.

  2. U.S. Department of Defense (DOD) | USAGov

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

  3. Military Departments | U.S. Department of War

    View the full A-Z list of all Department of War and service branch websites and social media sites. Register a Department of War or service branch website or social media site with War.gov. …

  4. U.S. Department of Defense - Encyclopedia Britannica

    3 days ago · 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.

  5. Department of Defense > News

    A .mil website belongs to an official U.S. Department of Defense organization in the United States. A lock ( ) or https:// means you’ve safely connected to the .mil website. Share sensitive …

  6. Cyber Awareness Challenge | Cyber Exchange

    The Cyber Awareness Challenge is the DoD baseline standard for end user awareness training by providing awareness content that addresses evolving requirements issued by Congress, the …

  7. Trump’s $1.5T Defense Budget Protects ‘Warfighters, Not Wall Street’: DOD

    1 day ago · The Pentagon defended President Trump's targeted statements towards defense contractors and efforts to boost the current defense budget by upwards of 50%.

  8. DCDC Home

    The Department of Defense Cyber Defense Command leads DoD’s unified force approach to network operations, security, and defense across the Department of Defense Information …

  9. Organizational structure of the United States Department of …

    The Pentagon, headquarters of the United States Department of Defense The United States Department of Defense (DoD) has a complex organizational structure. It includes the Army, …

  10. Official Website of the Joint Chiefs of Staff

    During a press conference at the Pentagon today, Defense Secretary Pete Hegseth and Air Force Gen. Dan Caine, chairman of the Joint Chiefs of Staff, lauded the success of the U.S. Central …