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Defense Department

Aliases

Defense DepartmentDepartment of Defense (U.S.)DoDMinistry of Defense (international reference)National Military Establishment (1947-1949)PentagonUnited States Armed Forces (colloquially)War Department (modern usage as DoW)

Disambiguation

The U.S. Department of Defense is the primary federal executive department responsible for military affairs. Also known as Department of War (DoW) in recent official usage. Not to be confused with the historical War Department (1789-1947), which was its predecessor.

Stats

mentions3
documents1

Organization

military-branchUSfounded: 1947

Enrichment

deeplast:2026-05-14 16:54:53 UTC
  • United States Department of Defense
    Wikipediahigh· 2026-05-14
    • Established September 18, 1947; renamed Department of Defense August 10, 1949
    • Headquarters at Pentagon, Arlington County, Virginia
    • Employs 2.8 million personnel as of 2024
    • Oversees six armed services: Army, Navy, Marines, Air Force, Space Force, Coast Guard
  • Department of Defense | History, Name Change, Secretary, & Branches
    Britannicahigh· 2026-05-14
    • Created by National Security Act of 1947; amended 1949
    • Consolidated War and Navy Departments into unified structure
    • Headed by Secretary of Defense, cabinet-level position reporting to President
    • Comprises three military departments and multiple defense agencies
  • All-domain Anomaly Resolution Office
    Wikipediahigh· 2026-05-14
    • AARO established July 20, 2022, within Pentagon structure
    • Director Jon T. Kosloski reports to Deputy Secretary of Defense
    • Investigates UAP across air, sea, space, and land domains
    • March 2024 report found no empirical evidence of alien technology
  • Department of War Releases Unidentified Anomalous Phenomena Files in Historic Transparency Effort
    U.S. Department of War (official)high· 2026-05-14
    • May 2026 release of 160+ declassified UAP files
    • PURSUE program (Presidential Unsealings and Reporting System for UAP Encounters)
    • Files include military reports, witness interviews, pilot accounts, photographs, videos
ingest:2026-05-14 05:26:46 UTC

Defense Department

Description (EN)

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Descrição (PT-BR)

Stub gerado pela deduplicação de entidades. Será enriquecido na Fase 6.

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Enrichment (EN)

Disambiguation: The U.S. Department of Defense is the primary federal executive department responsible for military affairs. Also known as Department of War (DoW) in recent official usage. Not to be confused with the historical War Department (1789-1947), which was its predecessor.

The U.S. Department of Defense (DoD), also referred to as the Department of War (DoW), is an executive department of the U.S. federal government established in 1947 to coordinate and supervise the United States Armed Forces. Headquartered at the Pentagon in Arlington County, Virginia, the DoD oversees the Army, Navy, Marines, Air Force, Space Force, and related defense agencies, employing approximately 2.8 million personnel. The department has demonstrated active involvement in unidentified anomalous phenomena (UAP) research through the All-domain Anomaly Resolution Office (AARO), established in July 2022 to investigate UAP incidents across all military domains. In 2026, the DoD participated in a major declassification initiative releasing over 160 historical UAP files under the Presidential Unsealings and Reporting System for UAP Encounters (PURSUE) program.

Enriquecimento (PT-BR)

Desambiguação: The U.S. Department of Defense is the primary federal executive department responsible for military affairs. Also known as Department of War (DoW) in recent official usage. Not to be confused with the historical War Department (1789-1947), which was its predecessor.

O Departamento de Defesa dos EUA (DoD), também referido como Departamento da Guerra (DoW), é um departamento executivo do governo federal dos EUA estabelecido em 1947 para coordenar e supervisionar as Forças Armadas dos Estados Unidos. Sede no Pentágono no Condado de Arlington, Virgínia, o DoD supervisiona o Exército, Marinha, Fuzileiros Navais, Força Aérea, Força Espacial e agências de defesa relacionadas, empregando aproximadamente 2,8 milhões de pessoal. O departamento demonstrou envolvimento ativo em pesquisa de fenômenos anômalos não identificados (UAP) através do Escritório de Resolução de Anomalias em Todos os Domínios (AARO), estabelecido em julho de 2022 para investigar incidentes de UAP em todos os domínios militares. Em 2026, o DoD participou de uma importante iniciativa de desclassificação divulgando mais de 160 arquivos históricos de UAP sob o programa Sistema Presidencial de Desclassificação e Relatório para Encontros de UAP (PURSUE).

External Sources

  • United States Department of Defense · Wikipedia · reliability: high — Established September 18, 1947; renamed Department of Defense August 10, 1949; Headquarters at Pentagon, Arlington County, Virginia; Employs 2.8 million personnel as of 2024; Oversees six armed services: Army, Navy, Marines, Air Force, Space Force, Coast Guard
  • Department of Defense | History, Name Change, Secretary, & Branches · Britannica · reliability: high — Created by National Security Act of 1947; amended 1949; Consolidated War and Navy Departments into unified structure; Headed by Secretary of Defense, cabinet-level position reporting to President; Comprises three military departments and multiple defense agencies
  • All-domain Anomaly Resolution Office · Wikipedia · reliability: high — AARO established July 20, 2022, within Pentagon structure; Director Jon T. Kosloski reports to Deputy Secretary of Defense; Investigates UAP across air, sea, space, and land domains; March 2024 report found no empirical evidence of alien technology
  • Department of War Releases Unidentified Anomalous Phenomena Files in Historic Transparency Effort · U.S. Department of War (official) · reliability: high — May 2026 release of 160+ declassified UAP files; PURSUE program (Presidential Unsealings and Reporting System for UAP Encounters); Files include military reports, witness interviews, pilot accounts, photographs, videos
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