However, after the dissolution of the Soviet Union, the US is the only superpower left. The US now believes that it cannot play the role of "global policeman" on its own, and must rely on the United Nations. Thus, the UN once again has importance.
可是從蘇聯解體後，就只剩美國一個超級強權；美國認為單靠它自己，沒有辦法扮演「世界警察」的角色，它需要借重聯合國，因此聯合國又重新有了重要性。