Below is a list of external resources for further exploration. Included are important museums, libraries, and historical and research centers relevant to the United States Military, its history, and its representation.

Congressional Research Service

U.S. Army Center of Military History

Naval History and Heritage Command

National Museum of the Marine Corps

National Museum of the U.S. Navy

National Museum of the U.S. Air Force

National Museum of the U.S. Army

U.S. Naval Institute

U.S. Air Force Historical Research Agency

U.S. Marine Corps History Division

Combined Arms Research Library (CARL) at Fort Leavenworth, Kansas

U.S. Army Heritage & Education Center

Air University (U.S. Air Force War College Library)

U.S. Naval War College Library

National Defense University Library