The Vietnam War was one of the most controversial and bloody wars in U.S. history. It carried on for twenty years (1955-1975) and the total amount of deaths ranged from 2.5 to 3.5 million people. Almost 60,000 American lives were claimed during that time. The Vietnam War was essentially a proxy war waged by the U.S. against the Soviet Union as part of the Cold War effort to block the spread of communism and Soviet political influence. The following incredibly rare photos give a chilling, never before seen portrayal of the Vietnam War. Think you’re ready for it? Click on.