"Christian Just War Theory", a Christian-themed ethics class taught by chaplains for over 20 years, has been discontinued by the US Air Force. Using both the Old and New Testaments, a moral basis for war was the class focus. The class was suspended after the Military Religious Freedom Foundation filed a law suit on behalf of Protestant and Catholic students and instructors who found the material violated church-state separation. The US Air Force agreed stating that the use of only Christian Scripture was "inappropriate" in a "pluralistic society." The Air Force is currently determining if the class should permanently cease or if the material can be revised. The American Center for Law and Justice criticized the class' suspension, stating that this was "another attempt to cleanse American history of its religious realities."