 In accordance with the 1988 agreement, the USAF portion of the base was turned-over to the Spanish government on 21 May 1992, with the 401st Tactical Fighter Wing being transferred to Aviano Air Base, Italy without personnel or equipment.In the mid-1990s Torrejón Air Base was opened to civilian traffic (mostly charter and executive traffic) and was given the name Madrid–Torrejón Airport.Prior to the completion of Barajas Terminal 4 it was used on several occasions to reduce congestion at the old overloaded Barajas terminals.