December 31, 1970
The U.S. Congress repealed the Gulf of Tonkin resolution, which in 1964 authorized an increase in U.S. military involvement in Vietnam as a response to a later to be revealed as fictitious attack on U.S. naval forces patrolling close to the North Vietnamese border. The resolution was used as the basis for the war, which lasted until 1974 and took the lives of millions of Vietnamese and more than 58,000 Americans.

