Naval Air Station Keflavik of the airport was assumed by Military Air Transport Service (MATS). MATS re-established a military air terminal and refueling point for trans-Atlantic air service between the United States and Europe at Keflavik. MATS (later MAC and Air Mobility Command) units remained at the airport until the withdrawal of United States military units from Iceland in 2006. During 1947–51, while the base was operated by a US civilian contractor company most of the World War II temporary structures were left empty and became badly deteriorated. The airfield complex, one of the largest in the world during the war, also required upgrading
El Alto International Airport the three biggest airports in the country: El Alto International Airport, Jorge Wilstermann International Airport and Viru Viru International Airport through its subsidiary Servicio de Aeropuertos Bolivianos S.A. (SABSA). In 1999 Airport Group International was purchased by TBI plc. In 2004, the company was acquired by the Spanish conglomerate Abertis, hence taking ownership of SABSA. In February 2013, the Government of Bolivia announced the nationalization of SABSA, taking full ownership and operations of Bolivia's main international gateways. El Alto International Airport El Alto International Airport () is an international airport located in the city of El Alto, Bolivia, west of