Naval Air Station Keflavik War with the Soviet Union, and world tensions increasing, Iceland's leaders reconsidered. Icelandic officials decided that membership in the NATO alliance was not a sufficient defense and, at the request of NATO, entered into a defense agreement with the United States. This was the beginning of the Iceland Defense Force. Over the next four decades, the Defense Force was "at the front" of the Cold War and was credited with playing a significant role in deterrence. On 25 May 1951 the U.S. Air Force reestablished a presence at Keflavik Airport with the establishment of the 1400th Air Base Group. Jurisdiction
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