The El Calabozo massacre was an incident during the Salvadoran Civil War on August 21–22 1982, in which more than two hundred people, including children and elderly, were reportedly killed at El Calabozo by the Atlacatl Battalion of the Salvadoran Army. In August 1982, the Salvadoran military attacked the San Vicente Department, an area where the rebel Farabundo Martí National Liberation Front was known to have bases. The department was bombed for several days before ground forces advanced, causing many civilians to flee.