You must follow important details and security guidelines to reserve a Pentagon tour and be cleared to enter the Pentagon for your tour.

Feb 12, 2025 · 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.

Dec 19, 2019 · The Pentagon is a universal symbol of U.S. strength and security known around the world, but do you know the history behind it?

The institutional status of the Pentagon derives from its role as nerve center of the country’s armed forces—the largest of U.S. government institutions. From 1942 to 1947 it housed the War Department and since then the major elements of the Department of Defense: the Office of the Secretary of Defense, the Joint Chiefs of Staff, and the ...

Apr 16, 2024 · Why is the Pentagon actually a pentagon? And is it the biggest office building in the world? Find these answers and more in the 10 things you probably didn't know about the Pentagon.

The Pentagon, with its iconic design, is the headquarters of the Department of Defense. Find out more about DOD's mission and organization. Learn More

Mar 8, 2022 · To take a guided tour of the Pentagon, you must make a reservation using the Pentagon Tour Reservation Portal. Each adult member of your tour group must then register as a Pentagon Visitor and be ...

The Historical Office of the Office of the Secretary of Defense (OSD) dates to 1949. It is one of the longest serving continuously operating offices in the Office of the Secretary of Defense and has been recognized for the excellence of its publications and programs for over a half century. The mission of the historical office is to collect, preserve, and present the history of the Office of ...

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The Department of Defense provides the military forces needed to deter war and ensure our nation's security.