New military technologies are animated by fantasies of perfect knowledge, lawfulness, and vision that contrast sharply with the very real limits of human understanding, law, and vision. Thus, various kinds of violent acts are proliferating while their precise nature remains unclear. Especially man–machine ensembles, guided by algorithms, are operating in ways that challenge conceptual understanding. War and Algorithm looks at the increasing power of algorithms in these emerging forms of warfare from the perspectives of critical theory, philosophy, legal studies, and visual studies. The contributions in this volume grapple with the challenges posed by algorithmic warfare and trace the roots of new forms of war in the technological practices and forms of representation of the digital age. Together, these contributions provide a first step toward understanding—and resisting—our emerging world of war.