The 364th Civil Affairs Brigade is a unit of the

US Army Reserve The United States Army Reserve (USAR) is a reserve force of the United States Army. Together, the Army Reserve and the Army National Guard constitute the Army element of the reserve components of the United States Armed Forces. History Origi ...

since 1966. The unit was first created in 1966 as HHC, 364th Civil Affairs Area and was assigned to Sixth Army in

Portland, Oregon Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...

. In 1975, the unit was redesignated as the 364th Civil Affairs Brigade. The brigade has deployed several times since the 1990s, in (Saudi Arabia) the

first Gulf War The Gulf War (1990–1991) was an armed conflict between Iraq and a multinational military coalition led by the United States, triggered by the Iraqi invasion of Kuwait in August 1990. Persian Gulf War may also refer to: * Shatt al-Arab conflict ...

, Bangladesh (

Operation Sea Angel Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Man ...

), Haiti (Operation Maintain Democracy), Bosnia (

Task Force Eagle The Implementation Force (IFOR) was a NATO-led multinational peace enforcement force in Bosnia and Herzegovina under a one-year mandate from 20 December 1995 to 20 December 1996 under the codename ''Operation Joint Endeavour''. Background In ...

) and Afghanistan (

Operation Enduring Freedom Operation Enduring Freedom (OEF) was the official name used by the U.S. government for both the first stage (2001–2014) of the War in Afghanistan (2001–2021) and the larger-scale Global War on Terrorism. On 7 October 2001, in response ...

).{{Cite web , title=U.S. ARMY 364TH CIVIL AFFAIRS BRIGADE PATCH (SSI) , url=http://www.uniforms-4u.com/p-364th-civil-affairs-acu-military-patch-5029.aspx , access-date=July 16, 2025 , website=The Salute Uniforms

Subordinate Units

* 405th Civil Affairs Battalion –

Fort Douglas, Utah Fort Douglas (initially called Camp Douglas) was established in October 1862, during the American Civil War, as a small military garrison about three miles east of Salt Lake City, Utah. Its purpose was to protect the overland mail route and te ...

* 440th Civil Affairs Battalion –

Fort Carson, Colorado Fort Carson is a United States Army post located directly south of Colorado Springs in El Paso, Pueblo, Fremont, and Huerfano counties, Colorado, United States. The developed portion of Fort Carson is located near the City of Colorado Sprin ...

* 445th Civil Affairs Battalion –

Mountain View, California Mountain View is a city in Santa Clara County, California, United States, part of the San Francisco Bay Area. Named for its views of the Santa Cruz Mountains, the population was 82,376 at the 2020 United States census, 2020 census. Mountain V ...

* 448th Civil Affairs Battalion – Joint Base Lewis–McChord, Washington

References

Civil affairs units and formations of the United States Army