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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 ...
The United States Navy ( USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the world's most powerful navy and the largest by tonnage, at 4.5 million tons in 2021 [9] and in 2009 an estimated battle fleet tonnage that exceeded the next 13 navies combined. [10]
Furthermore, per sections 8001(a)(1), 5061(4), and 5062(a) of title 10, U.S. Code, (1) the United States Navy does not include the United States Marine Corps (2); the U.S. Marine Corps is a separate component service, from either the U.S. Navy or the U.S. Coast Guard within the Department of the Navy; and (3) the U.S. Marine Corps is not a ...
The Office of Naval Intelligence ( ONI) is the military intelligence agency of the United States Navy. Established in 1882 primarily to advance the Navy's modernization efforts, [4] it is the oldest member of the U.S. Intelligence Community and serves as the nation's premier source of maritime intelligence. [5]
The secretary of the Navy ( SECNAV) is a statutory officer ( 10 U.S.C. ยง 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.
The United States Naval Research Laboratory ( NRL) is the corporate research laboratory for the United States Navy and the United States Marine Corps. It was founded in 1923 and conducts basic scientific research, applied research, technological development and prototyping. The laboratory's specialties include plasma physics, space physics ...
Naval aviation is the application of military air power by navies, whether from warships that embark aircraft, or land bases. Naval aviation units are typically projected to a position nearer the target by way of an aircraft carrier. Carrier-based aircraft must be sturdy enough to withstand demanding carrier operations.
The United States Naval Observatory ( USNO) is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. [2] Established in 1830 as the Depot of Charts and Instruments, it is one of the oldest scientific agencies in the United States ...