Operation Passage to Freedom

Operation Passage to Freedom was a term used by the United States Navy to describe the propaganda effort and the assistance in transporting 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam (the Democratic Republic of Vietnam) to non-communist South Vietnam (the State of Vietnam, later to become the Republic of Vietnam) between the years 1954 and 1955. The French and other countries may have transported a further 500,000.

Source: Wikipedia — Operation Passage to Freedom (CC BY-SA 4.0)