Operation Safe Haven was a refugee relocation operation executed by the United States Marine Corps to evacuate 15,570-21,000 of the 200,000 Hungarian refugees to the United States following the Hungarian Revolution of 1956. The airlift was ordered by Dwight D. Eisenhower on Dec. 10, 1956, as a Cold War response to the Soviet suppression of the Hungarian revolt. It was a joint endeavor by the United States Bolling and Military Air Transport Services, the United States Navy, and various commercial aircraft. More information on the Wikipedia page [1].