International politics has often been viewed as a brutal place where might trumps right and where, as a consequence, questions of democracy are irrelevant to ask. In the last decades, however, scholars and political leaders have increasingly suggested that elements of democracy exist in governance beyond individual states. If this is so, how does democracy beyond the state shape international politics? This article suggests conceptual preliminaries for theorising consequences of democracy beyond the state in general and their implications for problems of peace and conflict in particular. The purpose is twofold: first, to begin reconstructing existing normative democratic theory into an explanatory perspective sensitive to international politics; second, to indicate how this new perspective is able to explain empirical observations pertaining to conflict and cooperation among states; international institutions; foreign policies; human rights protection; and the violence of transnational terrorist networks.