1970年,卷入越南战争而内外交困的美国,放弃了直接与越共军队交战方式,以更“策略”的方式为南越军队提供情报、武器、军事顾问及空中支援。当年夏天,越共军队捕获了美国一个由7人组成的高级军事考察组。美国对这个考察组的营救行动,导致了一场人类战争史上罕见的人蛇大战。 In 1970, the United States involved in the Vietnam War and its internal and external difficulties gave up its direct engagement with the CPV troops and provided intelligence, weapons, military advisers and air support to the South Vietnamese forces in a more “strategic” manner. In the summer of that year, the Vietnamese Communist Party captured a U.S. senior military inspection team composed of seven people. The rescue operation conducted by the United States against this investigation team led to a rare war on humanity.