September 8, 2005, marks the sixtieth anniversary of the arrival of US soldiers on the Korean peninsula to accept the surrender of Japanese forces. There will likely be little fanfare accompanying this event. At the end of World War II, Koreans viewed the Soviets and the Americans equally as liberators, and neither occupation force was expected to stay long on Korean soil. The special relationship between South Korea and the United States was forged by later events: the formation of the Republic of Korea (ROK) under American auspices in August 1948, the Korean War of 1950-53, and the Mutual Defense Treaty of 1954. The US-ROK alliance was, as the North Koreans and Chinese like to say of their own relationship, a “friendship cemented in blood,” marked by memories of shared sacrifice. It also involved the stationing of tens of thousands of American troops in South Korea. For over forty years, the purpose of this alliance was seen by both sides as clear and unambiguous: defending South Korea, as part of the “free world,” against the threat of the North, backed by China and the Soviet Union. The loosening of cold war alignments and the Soviet collapse in the late 1980s and early 1990s problematized but did not fundamentally alter this sense of shared purpose. But in the last ten years, and especially the last five, the US and South Korea have drifted increasingly farther apart in their views of the North Korean threat, and the nature of US-ROK relations more generally. While new critical attitudes toward the US in South Korea are often portrayed in the Western media rather simplistically as “anti-Americanism,” in fact they reflect a changing and increasingly complex relationship between America and Korea, between the ROK and North Korea (DPRK), and between Korea and its regional neighbors. The cold war is, in fact, finally and belatedly ending in and around the Korean peninsula, and with it the structure of international relationships it created.