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 "Batallón de Inteligencia 601"): The Batallón de Inteligencia 601 (Spanish for "601 Intelligence Battalion") was a special military intelligence service of the Argentine Army whose structure was set up in the late 1970s, active in the Dirty War and Operation Condor, and disbanded in 2000.
Relevant evidence: Yes