In the 1950s, the United States sent troops to Vietnam to support the South Vietnamese government in their fight against the communist North. Almost three million U. S. men and women traveled thousands of miles to fight for what was a questionable cause. American involvement was at its peak from 1965-69 when some 500,000 American troops were in Vietnam. America's involvement in Vietnam ended in 1973. At its peak, the war cost more than one billion...