This document discusses the complexity of international negotiations and the environment in which they take place. It notes that negotiations involve perceptions and occur through a process within a structured system of institutions, rules, and leadership. Specific details are then provided on the European Union's international identity, legal personality, actorness, competencies in external relations, and observer/member status in various international organizations. Examples are given of simulation exercises that could be used to practice negotiations between the EU and other entities like Russia or in a territorial dispute scenario.