チャコ戦争
During the Chaco War, the stadium was used as a munitions depot and troop meeting arena. After the war, it was renamed with the current name "Defensores del Chaco" (Defenders of the Chaco) in honour of the triumphant soldiers that took part in the Chaco War between Paraguay and Bolivia. It underwent renovations during 1939, 1996 and 2007.