At times, the US seemingly sought to eradicate any knowledge of nuclear technology from a country of which it is deeply suspicious, whereas the European approach was to seek reliable assurances that Iran would never develop a nuclear weapon. At the end of the day, the US recognized that any realistic policy needed European support, while Europeans saw preventing a rush to war by the US or Israel as a central policy objective.
此外，美国和欧洲的对伊朗核计划政策一直有一个战术性区别。美国多次想要根除它深度怀疑的国家的一切核技术知识，而欧洲的方针是寻求伊朗不会发展核武器的可靠保证。最终，美国认识到任何现实政策都需要欧洲的支持，而欧洲将阻止美国货以色列发动战争作为关键政策目标。