There are two schools of thought when it comes to the conduct of United States foreign policy. On the one hand are the proponents of liberal hegemony who see it as a vital necessity for the US to maintain its role as the leader of a world order based upon liberal democratic values and institutions. The realists, on the other hand, argue that this policy is doomed to fail and that in pursuing it the US has become a highly militarized state, one that in attempting to spread its liberal values elsewhere has only succeeded in weakening them at home. We will use two books to present these arguments. For the liberal side Robert Kagan's The Jungle Grows Back, America and Our Imperiled World (Knopf, 2018). John Mersheimer's The Great Delusion, Liberal Dreams and International Realities (Yale University Press, 2018), will make the case for the realists. Join in on the debate, the past and future course of US foreign policy.