Naval Air Station Keflavik the war in Europe, Keflavik Airport became a transit point for aircraft returning from the European Theater of Operations to the United States. With American air activities greatly reduced in Europe in the immediate postwar months, U.S. flying operations were similarly reduced in preparation for transfer of the base to the Icelandic government at the end of 1946. With all noncritical surplus equipment and supplies disposed of, all U.S. air activity ended at the airfield on 11 March 1947. Another agreement signed between the United States and Iceland in 1946 permitted continued use of the base by the United States.
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