"At the time of the peace agreement the United States agreed to replace equipment on a one-by-one basis," he said. "But the United States did not keep its word. Is an American's word reliable these days?" He continued, "The United States did not keep its promise to help us fight for freedom and it was in the same fight that the United States lost 50,000 of its young men."[121]
http://en.wikipedia.org/wiki/Vietnam_War
Gerald Ford took over as U.S. president on August 9, 1974 after President Nixon resigned due to the Watergate scandal. At this time, Congress cut financial aid to South Vietnam from $1 billion a year to $700 million. The U.S. midterm elections in 1974 brought in a new Congress dominated by Democrats who were even more determined to confront the president on the war. Congress immediately voted in restrictions on funding and military activities to be phased in through 1975 and to culminate in a total cutoff of funding in 1976.