Opening the first part of the book, this chapter 2 is dedicated to a particular story about the rebirth of the interdisciplinary study of International Law (IL) and International Relations (IR) in the aftermath of the Cold War. In the context of the then proclaimed United Nations Decade of International Law, an increasing number of academics based in the global north, mostly in Political Science departments of elite universities in the United States, called for the rapprochement between IL and IR. In this chapter, I engage with this mainstream interdisciplinary literature. I give particular attention to some of the considered most canonical interdisciplinary interventions and appeals (Abbott, 1989; Slaughter, 1993, 1995), offering a close, critical reading of the famous conceptualization of legalization in world politics (Goldstein et al., 2000b, 2001b). In so doing, I draw attention to a particular story of unequal, inter-disciplinary relations accompanying their liberal, rationalist calls for interdisciplinarity. Questioning their hegemonic conception of interdisciplinary study, as well as their particular (meta)theoretical positions and assumptions, I notice, most importantly, their almost complete disregard for the international and the world. Thus, I propose to turn to and engage with other interdisciplinary stories of IL and IR.