Scott Snyder and Leif-Eric Easley, “South Korea’s Foreign Relations and Security Policies,” Ch. 23 in the Oxford Handbook of the International Relations of Asia, edited by Saadia Pekkanen, John Ravenhill and Rosemary Foot, Oxford University Press, 2014, pp. 446-461; preview available at http://books.google.com/books?id=k80XBAAAQBAJ&pg=PA446.