1954 in the Vietnam War 5 April The National Security Council met again to consider U.S. intervention at Điện Biên Phủ. The Army, including Army Chief of Staff General Matthew Ridgway, was negative, stating that U.S. intervention would require 7 army divisions and heavy air support. 7 April President Eisenhower used the phrase "falling dominoes" in a press conference. This was the origin of the domino theory which postulated that if Vietnam became communist the other nearby states would soon follow. The domino theory was a prominent justification for the Vietnam War in the United States during the 1960s. 14 April Secretary of State John
Iceland in the Cold War the military protection of the United States, even if the economic benefits of the US military presence are gone. With the withdrawal of US forces, the country's military co-operation with other allied NATO countries, such as Norway, has increased. Iceland in the Cold War Throughout the Cold War, the nation of Iceland was a member of the North Atlantic Treaty Organisation (NATO) and allied with the United States, hosting a US military presence in Keflavík Air Base from 1951 to 2006. In 1986, Iceland hosted a summit in Reykjavík between United States President Ronald Reagan and Soviet Premier Mikhail Gorbachev,