Keflavik Air Station and shadow all Soviet aircraft in transit in and from the GIUK gap which passed through the detection range of its radars and relay to the NAS Keflavik Radar Operations Control Center (ROCC). Keflavik Air Station was decommissioned on 28 June 2006. The radar was replaced by a civilian ARSR radar and is now used for air traffic control. Keflavik Air Station Keflavik Air Station (NATO ID: H-1A) is a now-closed United States Air Force General Surveillance Radar station. It is located north-northwest of Naval Air Station Keflavik, Iceland. It was closed on 28 June 2006 as part of the
Chinggis Khaan International Airport Chinggis Khaan International Airport Chinggis Khaan International Airport (, "Çingis hán olon ulsîn niseh búdal", ) is the international airport serving Ulaanbaatar, Mongolia, situated southwest of the capital. It is the largest international air facility in the country. The airport was first established as "Buyant-Ukhaa airport" (, "Buyant-Uhá niseh onğocnî töw búdal") on 19 February 1957. In 1958, international flights began with flights to Irkutsk and Beijing using Ilyushin Il-14 aircraft. Regular flights from the airport started in 1961. The terminal was upgraded to make it suitable for international traffic in 1986. Between 1994 and 1997 a further major upgrade