In this chapter, I argue that political communities in world politics are composed of emotion norms or feeling rules 1 that set the frame for appropriate interpretations and meanings of emotional performance among members of a particular group, and thus incorporate sociocultural standards into the emotional lives of agents. Emotion norms provide intersubjective patterns of standardized emotional expressions that underpin collective meanings and beliefs, and thus constitute a particular community or culture by setting it apart from others. What makes emotions political, and thus relevant for International Relations (IR), is their communitarian nature: the affective connections between individuals and their respective communities.