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What life was like for a POW in Vietnam

Although the Vietnam conflict lasted for 20 years - from 1955 to the Fall of Saigon in 1975 - the United States government ...
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How SR-71 sonic booms signaled POWs in Vietnam

In 1972, US planners used SR-71 Blackbird reconnaissance flights to send covert signals to American prisoners held in North Vietnam. Carefully timed sonic booms over Hanoi were meant to alert ...