The failure of six countries to reach an agreement in the Six-Party Talks on Korea has shown the futility of negotiations to denuclearize North Korea. As Victor Ofosu shows in this timely new study, diplomacy failed because nuclear reversal is not in Pyongyang security, regional, or economic interests. This analysis examines factors which may encourage North Korea and other nuclear powers to reverse their posture, including considerations of constraint surrounding the INF treaty between the United States and Russia. The book also considers arguments criticizing the effectiveness of arms control agreements, the application of security and domestic models of arms control, and how security and domestic issues can deter a state from complying with a treaty.