US relations form the second case study. This case spans several important decades from the end of the Second World War, to the present day. As times changed, the structure of international relations also changed, often causing material shifts in the patterns of diplomacy between both nations. By visiting that relationship, it is possible to not just show the importance of high-level diplomacy between two pivotal states but also to consider the importance of an international governmental organisation – the European Union. The case studies were chosen as they offer a glimpse of diplomacy between states that were sworn enemies and had had little in common due to incompatible economic, political, or even religious, systems. Yet, through diplomacy, they were able to avoid war and find ways to achieve progress in the most critical of areas.
