What was the codename for the US evacuation of Saigon in April 1975?

The codename for the US evacuation of Saigon in April 1975 was Operation Frequent Wind. It was the final phase of the American evacuation from South Vietnam as North Vietnamese forces closed in on the capital.

The operation took place mainly on April 29 and 30, 1975, after Tan Son Nhut airport came under attack and fixed-wing evacuations became impossible. US helicopters carried evacuees from the Defense Attaché Office compound, the US Embassy, and other landing zones to ships of the US Navy waiting in the South China Sea.

More than 7,000 people were evacuated by helicopter during Frequent Wind, including American citizens and many Vietnamese considered at risk because of their association with the United States. The evacuation produced some of the most recognizable images of the Vietnam War, including helicopters landing on crowded carriers.

Operation Frequent Wind was originally codenamed Talon Vise, but the name was changed after it was compromised. Operation Eagle Pull, sometimes confused with it, was the earlier April 1975 evacuation of Phnom Penh, Cambodia. The fall of Saigon followed on April 30.