No region of the world is immune from the terrible costs of conflict on individuals, society, and our world. The Harvard International Negotiation Program develops cutting edge ideas to address the systemic challenges of modern conflict. To tackle this global problem, the Harvard International Negotiation Program builds theory and practical tools to address the emotional and identity-based roots of modern conflict. Our faculty have produced foundational negotiation texts, advised such leaders as Nelson Mandela and Jimmy Carter, and field-tested ideas in the crucibles of conflict. To address the interdisciplinary roots of modern conflict, INP is based in the psychology program at Harvard Medical School/McLean Hospital and affiliated with the Harvard Negotiation Project at Harvard Law School.