The principal focus of the papers collected in this book is the Republic of Korea (ROK)-U.S. alliance and the challenges it faces from tensions within the alliance, the effects of the alliance partners' interaction with North Korea, and the economic pressures that affect the alliance. These papers were presented at the 16th Annual Conference of the Council on U.S.-Korea Security Studies in October 2001. Because of the elapsed time, the reader could be tempted to think that the events since these papers were presented have overtaken the arguments of the presenters. This is far from the truth. Each of these papers reflects the enduring historical forces, geopolitical realities, and national interests that affect Northeast Asia, the Korean peninsula, and the ROK-U.S. alliance. The descriptions of the alliance mechanisms, the Armistice machinery, the Agreed Framework, and the economic imperatives that affect the alliance thus have continuing value. The policy recommendations are still germane and worthy of the consideration of those to whom the future of the alliance is entrusted.