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e. 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). [1]
Department of Defense Agencies, Field Activities, and others. Defense Advanced Research Projects Agency (DARPA) Defense Commissary Agency (DeCA) Defense Contract Audit Agency (DCAA) Defense Contract Management Agency (DCMA) Defense Counterintelligence and Security Agency (DCSA) Defense Finance and Accounting Service (DFAS)
H-Hour. The specific time at which an operation or exercise commences, or is due to commence (this term is used also as a reference for the designation of days/hours before or after the event). (NATO); also known as 'Zero Hour'. I-Day. Used informally within the U.S. military bureaucracy to variously designate the "Implementation Day" or the ...
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 ...
United StatesArmed Forces. The United States Department of Defense (DoD, [2] USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the U.S. government directly related to national security and the United States Armed Forces.
The relationship between the US Navy and US Marine Corps is also one of mutual respect, and that respect is manifested in various policies and procedural regulations. For example, per US Marine and Navy drill manuals, in a formation consisting of both Marine and Navy units, per MCO P5060.20, Marine Corps Drill and Ceremonies Manual, Paragraph ...
The systems commands, abbreviated as SysCom or SYSCOM, are the materiel agencies of the United States Department of the Navy, responsible for the design, construction, and maintenance of military systems such as ships, aircraft, facilities, and weapons. The systems commands replaced the Navy bureau system in 1966 and report to the Assistant ...
The Department of Defense master clock is the atomic master clock to which time and frequency measurements for the United States Department of Defense are referenced. Located in Washington D.C., the U.S. Naval Observatory master clock is designated as the "DOD Master Clock". It is one of the two standard time and frequency references for the U ...