Which of the following names a piece of legislation that was passed at the beginning of the Vietnam War and repealed before its end?

The Gulf of Tonkin Resolution was passed in 1964, early in the Vietnam War, and Congress repealed it in 1971, before the war ended in 1975. The War Powers Resolution came later, in 1973, while Vietnamization and the cease-fire were not legislation repealed before the war’s end.

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