Hellenikon Air Base Cyprus (1975), Ethiopia (1977), and Iran (1979, 1981). The American base was renamed Hellenikon Air Base on 25 February 1976, and also provided administrative and logistical support to U.S. units and organizations in Greece, the Middle East, Eastern Mediterranean, and parts of Africa. With the end of the Cold War, it was agreed to end the USAF presence at the airport and the United States closed its facilities in 1993. In 1963, the Finnish star architect Eero Saarinen designed the East Terminal building. Prior to closing its passenger service, the airport was serving 12 million passengers per year. Hellenikon Air
Mamamah International Airport airport development was expected to be followed by the construction of a new State House, parliament building, ministry buildings, court houses and other support facilities. The developments were intended to improve Sierra Leone's competitiveness as the country prepares to become a middle income country by 2035. Other related development projects are the planned bridging of "Tagrin Bay", which separates Freetown from the peninsula on which Lungi International Airport is located, and the ongoing expansion of the port of Freetown. China Railway International Group had been contracted to build the airport at a cost of US$318 million, borrowed from the Exim