1st Signal Brigade (United States)

The 1st Signal Brigade ("First to Communicate") is a military communications brigade of the United States Army subordinate to the Eighth United States Army and located at Yongsan Garrison in South Korea.

Vietnam War
The first Signal Brigade was activated on 1 April 1966 in the Republic of Vietnam. The Brigade's mission in Vietnam was to originate, install, operate, and maintain a complex communication system that fused tactical and strategic communications in Southeast Asia under a single, unified command. The formation of the Brigade brought together three Signal groups that were already in South Vietnam.

At the peak of the Vietnam War the brigade consisted of more than 21,000 soldiers, in six Signal groups, 22 Signal Battalions and several communications agencies, making the 1st Signal Brigade the largest Signal unit in the U.S. Army at the time.

South Korea to Modern Day
In November 1972 the Brigade was relocated to the Republic of Korea under the U.S. Army Strategic Communications Command. On 29 January 1973 the 1st Signal Brigade was reestablished by General Order 56 from HQ, USASTRATCOM. The Brigade's mission in South Korea is to provide communications support to the United Nations Command, U.S. Forces Korea and the Eight U.S. Army. The Brigade was also given the mission of installing, maintaining and operating the Defense Communications System in South Korea.

Subordinate Units

 * 1st Signal Brigade
 * Headquarters & Headquarters Company
 * 36th Signal Battalion
 * 41st Signal Battalion
 * 304th Expeditionary Signal Battalion
 * 307th Expeditionary Signal Battalion
 * 6th Signal Center
 * 251st Signal Detachment

Lineage

 * Constituted 26 March 1966 in the Regular Army as Headquarters and Headquarters Company, 1st Signal Brigade
 * Activated 1 April 1966 in Vietnam

Campaign participation credit

 * Vietnam
 * Counteroffensive
 * Counteroffensive, Phase II
 * Counteroffensive, Phase III
 * Tet Counteroffensive
 * Counteroffensive, Phase IV
 * Counteroffensive, Phase V
 * Counteroffensive, Phase VI
 * Tet 69/Counteroffensive
 * Summer‐Fall 1969
 * Winter‐Spring 1970
 * Sanctuary Counteroffensive
 * Counteroffensive, Phase VII
 * Consolidation I
 * Consolidation II
 * Cease‐Fire

Decorations

 * Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1966‐1967
 * Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1967‐1969
 * Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1970‐1972
 * Army Superior Unit Award, Streamer embroidered 2007