Japan's Military Modernization and Regional Security Dynamics

Japan’s defence modernization is a major shift in its defence doctrine, driven primarily by the changing regional threats and regional strategic realignment. This study looks into the factors influencing the Japanese defence policies such as, geopolitical tensions with China and North Korea, technological developments, and further deepening alliances with the United States and other regional partners and tries to analyse how such developments influence the security dynamics of East Asia using qualitative content analysis. The findings reflect Japan's changing approach from a classical pacifist state to a more proactive security role, strengthening deterrence while fuelling regional stability concerns and possible competition in the arms race. Japan's defence modernization enhances the capability of its defence, rewriting its geopolitical role and standing as a crucial player in maintaining regional stability. Still, balancing national security and historical pacifist commitment leaves the complex set of challenges. The study emphasizes the need for strategic diplomacy and multinational cooperation to mitigate tensions and maintain the stability of the security environment in East Asia.