United States Military Advisory Group (MilGroup), located in the capital of the country, San Salvador, and its advisors who were located throughout the military districts of El Salvador. They were responsible for the training and the expansion of the El Salvadoran Armed Forces (ESAF).
in the initial group were Army Special Forces soldiers who had been specifically trained for that type of operation. Special Forces soldiers (green berets) were also in El Salvador to help train Salvadoran military personnel in communications, intelligence, logistics, and in other skills designed to improve their capabilities to interdict infiltration and to rapidly respond to terrorist attacks.24 Counterinsurgency training was the primary mission given to the green berets assigned to El Salvador. Due to their extensive knowledge in many types of combat skills green berets found themselves providing training to the Salvadoran armed forces on a wide variety of subjects.
soldiers. The U.S. Air Force and the U.S. Navy began sending trainers to El Salvador, to provide training for their counterparts. Once all American services became involved in El Salvador, the Army advisors found it increasingly difficult to maintain sufficient advisor strength to conduct training above the company level.
The second obstacle was that the ESAF also had to fight a war. Senior ESAF leadership would order battalions, which were engaged in training, out of their cuartels and send them into battle as a form crisis action response. Combat operations between the ESAF and FMLN forces taking place at a distant location would cause units conducting training to be moved to help the ESAF unit in contact