Question: Which Major and Commander of the Argentine National Gendarmerie was involved in a special military intelligence service of the Argentine Army that collected information on and infiltrated guerrilla groups, human rights organizations, coordinated killings, kidnappings, and other abuses?
Sentence (from "Agustín Feced"): Agustín Feced (born June 11, 1921, died 1980s or 1990s) was a Major and Commander of the Argentine National Gendarmerie, and the head of the Police of the Province of Santa Fe for the city of Rosario, during the Dirty War.
Relevant evidence: Yes