Deepening of Japan-Europe Security and Defense Cooperation through Defense Technology Partnerships

Due to self-imposed restrictions on joint defense equipment production and technology cooperation, Japan has long been an isolated player in the global defense industry. However, as it is facing the most severe security environment to date and dwindling domestic defense industrial bases, Japan has begun a fundamental reinforcement of its defense capabilities through three lines of effort: strengthening its own capabilities; deepening the Japan-US alliance; and enhancing international cooperation, especially in its defense industrial relationship with Europe. This article focuses on two key areas of Japan-Europe cooperation: institutionalization of industrial security and cutting-edge technology projects. This article discusses why Japan’s defense technology cooperation with Europe matters and argues that Japan’s objective is not only to strengthen its defense capabilities as deterrence but also to position itself as a trusted partner and an internationally competitive player by building credibility in industrial security.