505th Military Intelligence Brigade (Theater)
intelligence Formation of the United States Army
The 505th Military Intelligence Brigade (Theater) is a military formation of the United States Army falling under the command of United States Army North.
History
The 505th Military Intelligence Brigade traces its history back to 30 January 1951 when the 505th Communication Reconnaissance Group was constituted within the Organized Reserve Corps (predecessor to the Army Reserve). On 19 February 1951, the group was activated with its headquarters in Boston, Massachusetts. On 9 July 1952, the Organized Reserve Corps was re-designated as the Army Reserve and the group consequently joined. On 10 September 1956, the group was re-designated as the 505th Army Security Agency Group. However, on 1 July 1959, the group was inactivated.
On 15 February 1963, the group was re-activated with its headquarters in Boston, Massachusetts. However, on 31 January 1968, the group was inactivated once again.
On 1 February 1990 the group became the 505th Military Intelligence Group, and on 8 August 1995 the headquarters became the headquarters and headquarters detachment. Under the re-organization of the Army following the end of the Cold War, the group was re-activated as the 505th Military Intelligence Group (East) with its headquarters at Fort Gillem, Georgia on 18 February 1998.
“505th Military Intelligence Brigade (Theater)” enters the record as intelligence Formation of the United States Army. Crown Archives preserves that source wording while asking what 505th, Military and Intelligence can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q110269343. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1951, 1952, 1956 and 1959.
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This entry incorporates text from “505th Military Intelligence Brigade (Theater)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.