Abstract

This paper makes three related points. First, Japan has played an instrumental role in helping to define the shape and substance of multilateralism in Asia in ways deeper than scholarly literature on Asia's regional architecture has allowed. A key driving force behind Japan's contributions is the perceived utility of multilateralism in facilitating Japan's engagement of and/or balancing against China. Second, Japan has been able to achieve this because of the United States' support for Asian multilateralism and Japanese security interests. In the immediate post-Cold War period, Japan facilitated US participation in regional arrangements such as the Asia-Pacific Economic Cooperation and the ASEAN Regional Forum. But Japanese ambivalence over its dependence on the United States was also apparent in Tokyo's attempts to exclude Washington from the newly formed East Asia Summit in late 2005, despite Japan's felt need to balance China. Japan's reliance on quiet diplomacy and an implicit regional leadership has equally been instrumental to its achievements in regional integration. Third, in the light of Japan's longstanding aim to become a normal military power and adopt a more assertive policy toward China, Japan‒US security ties are likely to deepen with negative consequences for Asian multilateralism. However, if its ties with China and South Korea worsen over their islands disputes in the East China Sea, Japan risks undermining its relations with the United States. How Japan balances its normalization with a continued engagement with multilateralism could be key to a stable and secure Asia