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  2. United States Department of the Navy - Wikipedia

    en.wikipedia.org/wiki/United_States_Department...

    The United States Department of the Navy (DON) is one of the three military departments within the Department of Defense of the United States of America.It was established by an Act of Congress on 30 April 1798, at the urging of Secretary of War James McHenry, to provide a government organizational structure to the United States Navy (USN); since 1834, it has exercised jurisdiction over the U ...

  3. Organizational structure of the United States Department of ...

    en.wikipedia.org/wiki/Organizational_structure...

    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, 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 ...

  4. United States Department of Defense - Wikipedia

    en.wikipedia.org/wiki/United_States_Department...

    The National Military Establishment formally began operations on September 18, the day after the Senate confirmed James V. Forrestal as the first secretary of defense. The National Military Establishment was renamed the "Department of Defense" on August 10, 1949, and absorbed the three cabinet-level military departments, in an amendment to the ...

  5. List of U.S. Department of Defense agencies - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._Department_of...

    The Department was established in 1947 and is currently divided into three major Departments—the Department of the Army, Navy and Air Force—and has a military staff of 1,418,542 (553,044 US Army; 329,304 US Navy; 202,786 US Marine Corps; 333,408 US Air Force). The DoD is headed by the Secretary of Defense.

  6. Navy Marine Corps Intranet - Wikipedia

    en.wikipedia.org/wiki/Navy_Marine_Corps_Intranet

    In October 2008, NMCI's prime contractor HP posted a set of procedures so Apple Mac users can access NMCI's public-facing Web services, such as the e-mail and calendar functions, using their CAC readers with their Macs. The workaround also works with other Defense Department CAC-enabled networks.

  7. Meredith Berger - Wikipedia

    en.wikipedia.org/wiki/Meredith_Berger

    Secretary of Defense Medal for Outstanding Public Service. Meredith Ashley Berger [1] is an American government official who is serving as the United States Assistant Secretary of the Navy for Energy, Installations, and Environment; a position she has held since August 5, 2021. From August 25, 2021, until April 13, 2022, she concurrently served ...

  8. United States Secretary of the Navy - Wikipedia

    en.wikipedia.org/wiki/United_States_Secretary_of...

    The secretary of the Navy ( SECNAV) is a statutory officer ( 10 U.S.C. § 8013) and the head ( chief executive officer) of the Department of the Navy, a military department within the United States Department of Defense . By law, the secretary of the Navy must be a civilian at least five years removed from active military service.

  9. Defense Message System - Wikipedia

    en.wikipedia.org/wiki/Defense_Message_System

    The Defense Message System or Defense Messaging System (DMS) is a deployment of secure electronic mail and directory services in the United States Department of Defense.DMS was intended to replace the AUTODIN network, and is based on implementations of the OSI X.400 mail, X.500 directory and X.509 public key certificates, with several extensions to meet the specific needs of military messaging.