The earliest scholarly writing on “cyberpolitics” focused mainly on the domestic sphere, but it became clear by the mid-2000s that the Internet-generated “cyberspace” was also having massive effects on the broader dynamics and patterns of international politics. A great deal of the early research on this phenomenon focused on the way cyberspace might empower nonstate actors of all varieties. In many respects that has been the case, but states have increasingly asserted their “cyberpower” in a variety of ways. Some scholars even predict a coming territorialization of what was initially viewed as a technology that fundamentally resisted the dictates of sovereign borders. Such disparate possibilities speak to the ambiguity surrounding the intersection of the international system and the political affordances generated by the Internet and related technologies. Does cyberpolitics challenge the international system as we know it—perhaps altering the very nature of war, sovereignty, and the state itself—or will it merely be subsumed within some structurally mandated logic of state-centric self-help? As might be expected, research that speaks to such foundational questions is quite sprawling. It is also still somewhat inchoate because the object of study is complex and highly malleable. The cyber-“domain” involves a physical substrate ostensibly subject to a territorially demarcated international system, but Internet-enabled activities have expanded rapidly and unpredictably over the past few decades because it also involves a virtual superstructure designed to be a network of networks, and so fundamentally at odds with centralized control. As such, some argue that because cyberspace has so enmeshed itself into all aspects of society, international politics and cyberspace should be seen as coevolving systems, and concomitantly that fields such as International Relations (IR) must update their theoretical and methodological tools. Such contentions indicate that an understanding of extra-domestic cyberpolitics has not so much involved progressively developing insights as differing perspectives compete to explain reality, but rather the growing recognition that we are only now catching up to a rapidly changing reality. As part of that recognition, much of the cutting-edge International Studies (IS) work on cyberpolitics is aimed at researching how the central actor in global politics, the state, is increasingly a cyberpolitical actor. This has meant the abandonment of strong assertions about the way cyberspace would exist separate from the “real world” of state interaction, or that it would force the alteration of especially hierarchical forms of state power. Instead, burgeoning literatures examine the myriad ways states seek to resist and control cyberpolitical activity by others, deploy their own cyberpolitical power, and even shape the very cyberspace in which all of this can occur. This focus on “international cyberpolitics” thus involves tracking a complex and growing milieu of practices, all while reflecting on the possibly fundamental changes being forced upon the international system. All of this points to the likelihood that the study of international politics will increasingly also be the study of international cyberpolitics.