The 8th Special Forces Group of the United States Army was established in 1963 at Fort Gulick, Panama Canal Zone. The primary mission of the 8th Special Forces Group (Airborne) [(SFG(A)] was counter-insurgency training for the armies of Latin America. Some training was performed under the sponsorship of the School of the Americas, also located at Fort Gulick.
In May 1962, the advance party from Company D, 7th SFG(A) departed from Ft. Bragg, NC to Fort Gulick, Panama, at that time in the Panama Canal Zone, to establish the 8th SFG(A). Three months later, in August 1962, Major Melvin J. Sowards, Commander of Company D, 7th SFG(A) moved the main body of the company to the Canal Zone. They would be followed by augmentation detachments. Upon their arrival, the basic organization of the Special Action Force (SAF) was completed and Lieutenant Colonel Sawyer assumed command. The legendary Lieutenant Colonel Arthur D. Simons, aka "Bull", then took command of Company D, 7th SFG(A) 18 January 1963 and LTC Sawyer became the Executive Officer. On 12 April 1963, under the command of LTC Simons, the SAF elements of the 7th SFG(A) were officially redesignated, as authorized by the Department of the Army and the 8th SFG(A) was activated.
https://en.wikipedia.org/wiki/8th_Special_Forces_Group_(United_States)