1972年，尼克松总统在没有发出警告的情况下，单方面对美国盟友征收关税，违反了国际货币基金组织（IMF）框架，还发动了不受支持的越南战争。
In 1972, President Richard Nixon unilaterally imposed tariffs on America’s allies without warning, violated the framework of the International Monetary Fund, and pursued an unpopular war in Vietnam.