In this seminar we will examine third-party intervention and its effects on conflict. Why do interveners get involved? In what ways do third parties try to manage or influence conflict? We will discuss various types of intervention, including economic sanctions, military assistance, and covert operations. We will then consider how interveners affect the outbreak, duration, and conclusion of conflict. Do interveners make conflict more or less likely to start? Do they shorten or lengthen fighting? How do they affect war outcomes? Case studies of intervention include Bosnia and Kosovo, World War I and World War II, and various Cold War conflicts. 3 hrs. sem.