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1. www.defense.govU.S. Department of Defense

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   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.

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     The Department of Defense provides the military forces...

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     Official Defense Department statements and announcements....

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     The Department of Defense is America's largest government...

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     The Department of Defense’s Readiness and Environmental...

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     )or https:// means you’ve safely connected to the .gov...

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     The Army, Marine Corps, Navy, Air Force, Space Force and...

2. www.britannica.com › topic › US-Department-of-DefenseU.S. Department of Defense (DoD) | Britannica

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   1 day ago · The mission of the Department of Defense is to provide, through its military strength, a solid foundation for the national policy of the United States. The forerunner of the Department of Defense, the National Military Establishment, was created by the National Security Act of 1947 and evolved from the experiences of World War II. While combat ...

   • Author: The Editors of Encyclopaedia Britannica

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3. www.defense.gov › News › ReleasesBiden Administration Announces Significant New Security ...

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   Apr 24, 2024 · A .gov website belongs to an official government organization in the United States. ... The Department of Defense provides the military forces needed to deter war and ensure our nation's security.

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     LIVE | U.S. Defends Israel's Rafah Offensive; Says 'No Major Attacks Yet' | State Dept Briefing

     May 10, 2024

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     U.S. State Dept.: Israel’s ‘limited’ operations in Rafah ‘does look like a prelude of a major military operation’

     May 8, 2024

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     Pro-Palestine Protesters Interrupt Lloyd Austin's Congressional Hearing

     May 8, 2024

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5. www.defense.gov › About › Secretary-of-DefenseSecretary of Defense - U.S. Department of Defense

   www.defense.gov › About › Secretary-of-Defense

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   May 1, 2024 · The secretary of defense oversees the Defense Department and acts as the principal defense policy maker and advisor. About Lloyd J. Austin III is the 28th secretary of defense, sworn in on Jan. 22 ...

6. www.defense.gov › News › Contracts> U.S. Department of Defense > Contract

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   May 3, 2024 · Today's Defense Department contracts valued at $7.5 million or more are now live on Defense.gov., ... This requirement will cover usage in all 50 United States, U.S. territories, and while ...

7. People also ask

   What does the Department of Defense do?

   • U.S. Department of Defense, 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 numerous defense agencies and allied services.

   U.S. Department of Defense (DoD) | Britannica

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   What did the Department of Defense do in the early 21st century?

   • In the early 21st century the Department of Defense consisted of the secretary of defense; the deputy secretary of defense; undersecretaries and assistant secretaries holding various portfolios; the office of the inspector general; the Departments of the Army, Navy, and Air Force; and numerous defense agencies and field activity offices.

   U.S. Department of Defense (DoD) | Britannica

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   How much is a Defense Department contract worth?

   • Today's Defense Department contracts valued at $7.5 million or more are now live on Defense.gov. Maintaining peace and stability in the Indo-Pacific serves as the key factor driving the selection of advanced capabilities in the AUKUS security partnership between the U.S., U.K. and Australia, senior officials said.

   News - U.S. Department of Defense

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8. www.brookings.edu › articles › what-is-deterrenceWhat is deterrence, and what is its role in U.S. national ...

   www.brookings.edu › articles › what-is-deterrence

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   May 1, 2024 · Since 1945, the Department of Defense has sought to deter war in three ways. The first is through the size and quality of conventional U.S. military forces—the equipment and operational skill of ...