In the last forty years, peace education has broadened its focus from primarily international peace and the prevention of war to an approach that encompasses social justice, environmental education, critical theory, and multicultural education. While this is a positive evolution in many respects, there is a danger in de-emphasizing the actual critique of war and militarism. This article looks at the reasons why peace education should revive its strong historical focus on problematizing war. There is a strong emphasis on how educators can implement this in the classroom by fostering an environment where students can critique both past and contemporary conflicts. This renewed focus is of special importance in our modern globalized world, especially in militarily powerful nations such as the United States.