 The worst year of the insurgency, 1976, saw 156 army officers, NCOs and conscripts and police killed.By the time Videla's military junta took power in March 1976, approximately five thousand prisoners were being held in various prisons around Argentina, some with connections and some just guilty by association.In all, 12,000 Argentines were detained during the military dictatorship and became known as the "detenidos-desaparecidos", but survived after international pressure forced the military authorities to release them.