With the end of World War II, Spain suffered from the consequences of its isolation from the international economy. Spain was excluded from the Marshall Plan, unlike other neutral countries in Europe. This situation ended in part when, in the light of Cold War tensions and of Spain's strategic location, the United States of America entered into a trade and military alliance with Franco. This historic alliance commenced with the visit of US President Dwight Eisenhower to Spain in 1953, which resulted in the Pact of Madrid. Spain was then admitted to the United Nations in 1955. American military facilities in Spain built since then include Naval Station Rota, Morón Air Base, and Torrejón Air Base.