in the sinking of the ARA Belgrano and the attack on ARA Sobral. In 1998, president Carlos Menem ordered the move of the School to the Puerto Belgrano base, and the use of the old campus as a museum. ESSA continues to function in the Puerto Belgrano base. Etymology and usage during the Dirty War Almost 5,000 people were abducted and held in the original ESMA campus in its active participation in the Dirty War between 1976-1983; all except 150 were killed during or after interrogation and torture. When announcements were made that prisoners were to be "transferred", people came to understand they were going to be executed. The prisoners were taken to the basement, sedated, and then killed, some by shooting, others in death flights: they were flown over the Atlantic Ocean or the Rio de la Plata and pushed out of the aircraft. These are only some examples of the many treatments that prisoners of the ESMA were forced to experience during the kidnappings that forced them into clandestine detention centers. Extrajudicial detention center The ESMA was used as a detention center from the very start of the 1976 dictatorship: on 24 March, the day of the coup d'état, several people kidnapped by the Armed Forces were taken there. Task Unit 3.2.2 was led by Rear-Admiral Rubén Jacinto Chamorro and Captain Carlos Acosta Ambone. Jorge Vildoza has been identified by survivors as the second-in-command of ESMA. Among the Task Unit's ranks were Jorge Eduardo Acosta, Alfredo Astiz, Ricardo Miguel Cavallo and Adolfo Scilingo, who became notorious as torturers. Astiz was known as the "Blond Angel of Death". Its chaplain during 1977 was Father Alberto Ángel Zanchetta. It was in charge of the city of Buenos Aires proper and the northern part of the metropolitan area (Gran Buenos Aires). Officers in charge were under strict orders not to reveal their identities or military affiliation when capturing prisoners. Between 1976 and 1978, the group was ultimately under the orders of Navy Commander-in-Chief Emilio Eduardo Massera. Massera had reportedly been present when the unit was set up, gave an opening speech to the officers, and personally participated in the first illegal detentions. Layout of the ESMA Once kidnapped, it was very rare that these prisoners would return home, leaving loved ones wondering if they would ever see their family members or friends again. During the beginning stages of the Dirty War,