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409th MI Company Unit History

History of the 409th MI Co, 732nd MI BN, 500th MI BDE, INSCOM, Schofield Barracks, HI

The 409th Army Security Agency Attachement was constituted on 1 April, 1966, and activated on 8 April, 1966 at Ft. George Meade, MD. On 18 August, 1966, the 409th ASA Detachment (known in Vietnam as the 409th Radio Research Detachment) was deployed with the 11th Armored Cavalry Rgt t oSoutheast Asia.

For the next three years, the detachment was located at Blackhorse Base Camp near Xuan Loc. For its efforts, the 409th RR Detachment was awarded a Valorous Unit Award, 4 Meritorious Unit Commendations, and 4 Republic of Vietnam Crosses of Gallantry.

The 409th RR Detachment would relocated to Di An on 5 October, 1969. By 6 March, 1971, the unit was deactivated as part of the redeployment of US combat forces from S. Vietnam.

On 1 July 1974, the 409th was redesignated as the 409th ASA Company and activated in Ausberg, Germany, and assigned to the 502nd ASA Group. On 16 October, 1986, it was reorganized and redesignated as Company A, 204th MI Bn. The following 21 years the company provided important cyprtologic support at echelons above corps. For it’s outstanding contribution, the company was recognized with two Army Superior Unit Awards.

During Desert Storm, Desert Shield, Company A deployed to Saudi Arabia where it served with distinction in all three campaigns. At the end of the COld War, the 409th was inactivated on 16 July, 1995.

On 10 April, 1997, the company was redesignated the 409th MI Co. On 16 June, 2000, the 409th MI Co was activated at Schofield Barracks, Hawaii, and assigned to the 115th MI Group with the Kunia RSOC. With the reorganization in Summer, 2005, the 409th MI Co was assigned to the 732nd MI BN under the 500th MI BDE.


Submitted By:
SGT Natalie Luther

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