United States Department of the Navy

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).The Department of the Navy is headed by the secretary of the Navy, also known as the SECNAV in naval jargon, who has the authority to conduct all of the affairs of the department, subject to lawful authority, the secretary of defense, and the president.They supervise their respective military services of the Department of the Navy, and in a separate capacity serve as members of the Joint Chiefs of Staff.Former famous marines have also voiced support including Lieutenant Colonel Oliver North and Gunnery Sergeant R. Lee Ermey, who stated in 2010 "When we die, when mama and dada get that letter of condolence, it would be kind of nice if the Marine Corps was mentioned...just change the letterhead."[8] Former secretaries of the Navy Paul Nitze and John Howard Dalton have also supported the change.
Seal of the U.S. Department of the Navy from 1879 to 1957.
Navy Department, mainly the Office of the Secretary, organizational structure (2006)
United States NavyThe PentagonArlington CountyVirginiaSecretaryThomas MancinelliUnder SecretaryU.S. Department of DefenseUnited States Marine CorpsUnited StatesArmed ForcesUnited States Department of DefenseDepartment of Homeland SecurityOffice of the Secretary of DefenseJoint Chiefs of StaffU.S. Department of the ArmyU.S. Department of the Air ForceUnited States ArmyUnited States Air ForceUnited States Space ForceUnited States Coast GuardAfrica CommandCentral CommandEuropean CommandIndo-Pacific CommandNorthern CommandSouthern CommandCyber CommandSpace CommandSpecial Operations CommandStrategic CommandTransportation CommandDefense Contract Management AgencyDefense Health AgencyDefense Information Systems AgencyDefense Intelligence AgencyDefense Logistics AgencyDefense Threat Reduction AgencyNational Geospatial-Intelligence AgencyNational Security AgencyCentral Security ServiceDepartment of Defense of the United States of AmericaAct of CongressSecretary of WarJames McHenryservice branchessecretary of the Navycivilian officerexecutive departmentpresident's cabinetNational Security Act of 1947establishedDepartment of the ArmyDepartment of the Air Forcesecretary of defenseJohn McCainSenateunder secretary of the Navyassistant secretaries of the Navygeneral counsel of the Department of the Navymilitary officerschief of naval operationscommandant of the Marine Corpsvice chief of naval operationsassistant commandant of the Marine Corpsuniformed servicesNavy RegulationsCongressHeadquarters Marine CorpsOffice of the Chief of Naval OperationsOffice of the Secretary of the Navyreserve componentsNavy ReserveMarine Corps ReserveWalter B. Jones Jr.Congressional Budget OfficeHouse of RepresentativesMarine Corps LeagueFleet Reserve AssociationVeterans of Foreign Warscommandants of the Marine CorpsAlfred M. Gray Jr.Carl Epting Mundy Jr.Charles C. KrulakJames L. JonesMichael HageeJames T. ConwayOliver NorthR. Lee Ermeysecretaries of the NavyPaul NitzeJohn Howard DaltonSenate Armed Services CommitteeThe Bluejacket's ManualCulture of the United States Marine CorpsHull classification symbolList of United States Marine Corps installationsList of United States Navy installationsNATOPSNaval Criminal Investigative ServiceNaval History and Heritage CommandUnited States Marine Corps History DivisionNaval ReactorsNaval University SystemNaval Vessel RegisterOPNAV InstructionShip commissioningTitle 32 of the Code of Federal RegulationsUnited States ship naming conventionsLibrary of CongressLaw Library of Congress10 U.S.C.Wayback MachineNaval Institute PressWikisourceNew International EncyclopediaFederal RegisterUSAspending.govCollier's New EncyclopediaMaster Chief Petty Officer of the Navy4-star admirals1864–19592000–20092010–20192020–presentHouse Armed Services Subcommittee on Seapower and Projection ForcesSenate Subcommittee on SeapowerStructureFleet Marine ForceExpeditionary Combat CommandMerchant 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SchoolTOPGUNUSNTPSUniformed Services University of the Health SciencesEquipmentUniformsAwards and decorationsBadgesCurrent fleetFuture fleetReserve fleetCurrent aircraftWeaponsHistoryAnchors AweighBlue AngelsContinental NavyEnsignFleet bandsFleet WeekLine-crossing ceremonyNational MuseumNavy BandCeremonial GuardNavy FlagNavy HymnNavy MemorialNavy service numbersNavy WeeksRevolt of the AdmiralsSailor's CreedShip naming conventionsTingey HouseUSS ConstitutionWetting-downUnited States battleship retirement debatePete HegsethDeputy Secretary of DefenseDeputy's Advisory Working GroupOffice of Net AssessmentSpecial Access Program Oversight CommitteeUnder Secretary of Defense (Comptroller)Defense Contract Audit AgencyDefense Finance and Accounting ServiceUnder Secretary of Defensefor Acquisition and SustainmentOffice of Local Defense Community CooperationDefense Acquisition UniversityDefense Acquisition BoardUnder Secretary of Defensefor Intelligence and SecurityDefense Counterintelligence and Security AgencyWhite House Communications AgencyNational Reconnaissance OfficeNational Security Agency/Central Security ServiceDirector/ChiefUnder Secretary of Defensefor Personnel and ReadinessDefense Commissary AgencyDepartment of Defense Education ActivityDefense Human Resources ActivityDefense Activity for Non-Traditional Education SupportDefense Equal Opportunity Management InstituteDefense Travel Management OfficeUnder Secretary of Defense for PolicyDefense Security Cooperation AgencyDefense POW/MIA Accounting AgencyDefense Policy Board Advisory CommitteeAssistant to the Secretary of Defense for Public AffairsDefense Media ActivityAmerican Forces NetworkDefense Information SchoolDefense Visual Information Distribution ServiceStars and StripesUnder Secretary of Defensefor Research and EngineeringDefense Advanced Research Projects AgencyDefense Innovation UnitDefense Technical Information CenterMissile Defense AgencyGeneral Counsel of the Department of DefenseDefense Legal Services AgencyChief Management Officer of the Department of DefensePentagon Force Protection AgencyWashington Headquarters ServicesWhite House Military OfficeAssistant Secretary of Defense for Legislative AffairsSecretary of the ArmyThe SecretariatUnder Secretary of the ArmyAssistant Secretary for Acquisition, Logistics, and TechnologyAssistant Secretary for Civil WorksAssistant Secretary (Financial Management and Comptroller)Assistant Secretary of the Army for Installations, Energy and EnvironmentAssistant Secretary of the Army for Manpower and Reserve AffairsGeneral Counsel of the ArmyThe Administrative AssistantChief of Staff of the ArmyVice Chief of Staff of the ArmySergeant Major of the ArmyDeputy Chief of Staff G-8 ProgramsChief of ChaplainsJudge Advocate GeneralProvost Marshal GeneralSurgeon GeneralU.S. ArmyStructure of the United States ArmyAssistant Secretary of the Navy (Energy, Installations and Environment)Assistant Secretary of the Navy (Financial Management and Comptroller)Assistant Secretary of the Navy (Manpower and Reserve Affairs)Assistant Secretary of the Navy (Research, Development and Acquisition)General Counsel of the NavyNaval Inspector GeneralSergeant Major of the Marine CorpsChaplainU.S. Marine CorpsOrganization of the United States Marine CorpsDirector of Naval ReactorsStructure of the United States NavySecretary of the Air ForceUnder Secretary of the Air ForceAssistant Secretary of the Air Force (Acquisition, Technology and Logistics)Assistant Secretary of the Air Force (Financial Management & Comptroller)Assistant Secretary of the Air Force (Installations, Environment & Energy)Assistant Secretary of the Air Force (Manpower & Reserve Affairs)General Counsel of the Department of the Air ForceAir Force Office of Special InvestigationsThe Air StaffChief of Staff of the Air ForceVice Chief of Staff of the Air ForceChief Master Sergeant of the Air ForceChief of SafetyChief ScientistU.S. Air ForceMajor CommandsDirect Reporting UnitsField Operating AgenciesSpace StaffChief of Space OperationsChairman of the Joint Chiefs of StaffVice Chairman of the Joint Chiefs of StaffSenior Enlisted Advisor to the ChairmanJoint Requirements Oversight CouncilDirector of the Joint StaffJoint StaffNational Military Command CenterAlternate National Military Command CenterNational Defense UniversityJoint Personnel Recovery AgencyCombatant CommandsNational Guard BureauChief of the National Guard BureauAir National GuardArmy National GuardOffice of the Inspector GeneralDefense Criminal Investigative ServiceUnited States Armed ForcesMarine CorpsAir ForceSpace ForceCoast GuardPresident of the United StatesSecretary of Homeland SecurityDeputy Secretary of Homeland SecurityChairmanVice ChairmanActive duty four-star officersActive duty three-star officersUnited States military seniorityGoldwater–Nichols ActComponentsDepartment of DefenseChief of Staff of the United States ArmyChief of Staff of the United States Air ForceCommandant of the Coast GuardNational GuardCivilian auxiliariesMilitary Auxiliary Radio SystemMarine Corps Cyber AuxiliaryCivil Air PatrolCoast Guard AuxiliaryUnified combatant commandAfricaCentralEuropeanIndo-PacificNorthernSouthernSpecial OperationsStrategicTransportationUnited States CodeTitle 10Title 14Title 32Title 50Unit mottoesBudgetCurrent deploymentsConflictsCivil affairsTimelineColonialWorld War IIAfrican AmericansAsian AmericansBuddhist AmericansJewish AmericansMuslim AmericansSikh AmericansHispanic AmericansCivil WarAcademyArmy Center of Military HistoryMarine Corps History DivisionAir Force Historical Research AgencyWar artistsArmy Art ProgramAir Force Art ProgramService academiesWarrant officerThe Basic SchoolAwards & decorationsInter-serviceForeignInternationalDevicesIdentificationWarrant officersEnlistmentOfficerCode of ConductService numbersMilitary Occupational SpecialtyRatingAir Force Specialty CodeUniform Code of Military JusticeJudge Advocate General's CorpsMilitary Health 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