Empirical Knowledge on Foreign Military Intervention

While the empirical literature on foreign military intervention has made considerable progress identifying the causes and consequences of military intervention, we still have much to learn about the subject. Mixed and even contradictory results remain common in the literature, and cumulative knowledge has in many instances proven elusive. Arguably the two most prominent theoretical approaches in recent scholarship, the bargaining model and the rivalry approach, have provided important insight into the phenomenon. They would nonetheless benefit from further refinement. Common explanatory variables outside of these two approaches also require further theoretical and empirical development. The literature has recently begun to examine the impact that military intervention has on target societies as well, with particular attention being given to target state democratization, human rights development, and conflict resolution. Empirical research could shed additional light on all of these phenomena by developing more detailed theory and data on intervention targets. It would also profit from incorporating systematic knowledge on leaders’ proclivities to use military force into current theoretical models.