Digital communication technologies have thrust the calculus of global political power into a period of unprecedented complexity. In every aspect of international affairs, digitally enabled actors are changing the way the world works, and disrupting the institutions that once held a monopoly on power. In Disruptive Power, Owen gives us a tour of the digital challenges to the nation-state, from newly flexible protest groups like Occupy and Anonymous to the rise of algorithms as weapons, often in the hands of non-state actors and often targeting civilian life. He weaves these observations into a forcefully argued thesis: the model of a world governed by stable nation-states is in crisis, forcing most state-led institutions into a choice between adaptation and collapse.