This chapter analyses the recent intensification of Japan-Vietnam security
relations from a Japanese perspective. It demonstrates that the relationship
has grown beyond a security talk shop since 2011, when relations began to
develop markedly toward substantial cooperation, especially on maritime
security, and today are on the verge of becoming militarily significant.
This chapter argues that Japan’s incentive to develop this partnership is
primarily to assist and induce Vietnam’s continued resistance against the
rise of Chinese maritime power. The recent changes in Japan’s domestic
security legislation potentially open new opportunities to further broaden
and deepen bilateral maritime security cooperation, because they legally
enable Japan to assist Vietnam militarily in some respects.