War Theory is a field of study that examines the nature, causes, and effects of war. It seeks to understand why conflicts arise, how they are conducted, and their consequences on societies. Scholars analyze historical wars, military strategies, and political motivations to develop frameworks that explain the dynamics of warfare. Key concepts in War Theory include just war theory, which explores the moral justification for engaging in war, and realism, which focuses on the competitive and anarchic nature of international relations. These theories help policymakers and military leaders make informed decisions about conflict and peacekeeping efforts.