随着冷战的结束,对国际强行法的研究和应用也就提上了日程。作者对国际强行法下一个定义;并认为国际强行法规则是非追溯性的,但明文规定国际强行法的《条约法公约》第53条则具有追溯力;对于违反国际强行法而订立的条约或实施之行为,应视不同情况分别给予“无效”或“成为无效而终止”的制裁,并应消除因此而产生的一切抵触性后果。 With the end of the cold war, the study and application of the law of international justes has also been put on the agenda. The author defines the next definition of international jus cogens and considers that the rules of international jus cogens are non-retroactive. However, Article 53 of the CISG, which expressly provides for international coercive law, has the effect of retrospective action. For treaties concluded in violation of international jus cogens or The implementation of the act shall be subject to different circumstances, respectively, “invalid” or “invalid termination” sanctions, and should eliminate all the resulting contradictory consequences.