On 1 April 1958, 1st Combat Group was founded and most members were from the 8240th Army Unit.

[citation needed] 1,172 of 1st Special Forces Group participated in the Vietnam War.

[citation needed] They conducted the special operations including long-range reconnaissance patrol, surprise attacks by hit-and-run tactics and so on.

[4] 64 of 1st Special Forces Brigade participated in the Operation Paul Bunyan in 1976.

[8][9] On 21 May 1964, some of its members broke into a courtroom and the house of a judge [ko] to demand an arrest warrant.