The War on Terror remains one of the most consequential and contested chapters of the twenty-first century, a global campaign launched in the shadow of the deadliest terrorist attack in modern history and shaped by decisions whose consequences would unfold for decades. Whether or not the delegates believe the path that followed was inevitable, they will experience first-hand how grief, fear, alliance and national interest can push even the most cautious leaders towards choices they cannot undo. Taking place on 12 September 2001, the day after the attacks on New York and Washington, delegates sit as the heads of state and government who must weigh incomplete intelligence, rival coalitions and the question of who bears responsibility, with the outcome still unwritten. The aim of this committee for delegates will be to shape the global response to terrorism, whether through diplomacy, deterrence or force, while pursuing their own nations’ interests.