My dissertation, "Distracted by Revisionists: The Determinants and Consequences of Extrastate War" explores an overlooked form of conflict: wars between governments and rebel groups outside the state's territory, known as extrastate wars. While there has been immense research on interstate war (governments fighting each other) and civil war (governments fighting rebels within their territory) very little attention has been paid to extrastate wars, despite how destructive and important they are. The project explores what causes extrastate wars (as well as lower level extrastate conflicts), and how they affect interstate war. I find that when rebels threaten the international system and are likely to take state power, it increases extrastate war. I also find that military drones increase extrastate conflicts and that, contrary to expectations, extrastate wars increase interstate wars. Each chapter also uses a causal identification strategy to help improve causal inference.