In the post-cold war period, the security situation in the Asia-Pacifi
c region and in Southeast Asia and Northeast Asia is undergoing a tran
sformation with the emergence for the first time of multilateral secur
ity dialogue. One of the most striking features of this transformation
is Japan's new role as a sponsor of multilateral security dialogue in
the early 1990s. Japanese policymakers are also working to create sec
urity and defence linkages with Asian nations at the subregional level
. Evidence gathered from diverse sources reveals that the Japanese Def
ence Agency and Ministry of Foreign Affairs are experiencing varied su
ccess in extending these types of linkages to the ASEAN nations, South
Korea and China. Linkages with the ASEAN nations have been slow to em
erge but look set to progress further as suspicion lessens of Japan's
role in Southeast Asian security, and as Japan's role in peacekeeping
expands. Remarkable progress has been made between Japan and South Kor
ea in establishing security and defence linkages, and the strategic un
certainties of the instability of North Korea and the commitment of th
e US to Northeast Asia look likely to push Japan and South Korea towar
ds closer co-operation on security matters. By contrast, Japan's repea
ted efforts to involve China in a closer dialogue on security have met
with limited success, and immediate progress is hampered by the issue
s of missile and nuclear testing, Chinese attempts to intimidate Taiwa
n with military exercises in late 1995 and early 1996, and, more gener
ally, the problem of 'transparency' in security relations. Indeed, the
evidence from Japan's attempts to create subregional security and def
ence linkages suggests that the most crucial factor in the success of
this policy is the existence of a degree of 'transparency' in relation
s between Japan and the ASEAN nations, South Korea and China.