He reasoned that no nation had ``God on its side (a universal morality ) and that all nations had to base their actions on prudence and practicality . He opposed the Vietnam War , arguing in 1965 that a communist Vietnam would not harm U .S . national interests . Quite recently , in 2002 , leading realists gained prominence among 33 IR scholars signing a New York Times advertisement warning that ``war with Iraq is not in America 's national interest ' In understanding the mentioned viewpoints...











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