Trilateral relations among the United States, the Republic of Korea, and the People’s Republic of China are becoming an increasingly important focus within Northeast Asia. To better understand the dynamics of this three-way relationship and their impact on the U.S.-ROK alliance, on April 14-17, 2004 the Pacific Forum and the New Asia Research Institute held the eighth in a series of U.S-ROK bilateral security dialogues and the second that examined China’s role and impact on their relationship.