Mutual Transformations – Southeast Asia and Japan in the 21st Century

This special issue examines the complex and evolving relations between Japan and Southeast Asia. Historically rich in resources, Southeast Asia attracted imperial powers, including Japan, significantly transforming the region. Post-war ecosystems were influenced by Japanese occupation during WWII, shaping leaders and industrial development. Japanese investments and Official Development Assistance (ODA) since the 1960s have facilitated regional growth. Despite Japan's cautious diplomacy due to its US alliance, it diversified support in the 1990s, including infrastructure, legal, and political aid to transitional economies like Vietnam. Japan remains a significant investor, expanding aid to address climate change and maintaining trust in ASEAN countries. Recent geopolitical shifts, including China’s rise and US-China competition, have pushed Southeast Asia to strengthen ties with both powers, positioning Japan’s evolving role as crucial for regional security and development. The issue includes analyses of Japan’s strategic empowerment of Southeast Asia, capacity building, nostalgia in foreign policy, and smart technologies in urban planning, illustrating broader trends and reducing historical asymmetries.