In October 1959, the United States sent a "Special Survey Team" composed of counterinsurgency experts to investigate Colombia's internal security situation. Among other policy recommendations the US team advised that "to shield the interests of both Colombian and US authorities against 'interventionist' charges any special aid given for internal security was to be sterile and covert in nature". In February 1962, three years after the 1959 "US Special Survey Team", a Fort Bragg top-level U.S. Special Warfare team headed by Special Warfare Center commander General William P. Yarborough, visited Colombia for a second survey.
In October 1959, the United States sent a "Special Survey Team" composed of counterinsurgency experts to investigate Colombia's internal security situation. Among other policy recommendations the US team advised that "to shield the interests of both Colombian and US authorities against 'interventionist' charges any special aid given for internal security was to be sterile and covert in nature". In February 1962, three years after the 1959 "US Special Survey Team", a Fort Bragg top-level U.S. Special Warfare team headed by Special Warfare Center commander General William P. Yarborough, visited Colombia for a second survey.