Background The Association of Southeast Asian Nations (ASEAN) has developed a distinctive diplomatic approach known as the “ASEAN Way,” characterized by consensus-building, non-interference, and informal dialogue. This approach has played a significant role in shaping regional identity and maintaining peace in Southeast Asia, despite increasing geopolitical and transnational challenges. However, its effectiveness and adaptability in a rapidly changing global environment remain subjects of debate. Methods This study adopts a qualitative research design based on the analysis of secondary data, including official ASEAN documents, academic literature, and case studies. A thematic analysis approach was employed to identify key patterns related to the principles of the ASEAN Way, its role in regional identity formation, and its contribution to peace and stability. Data triangulation and expert consultation were used to enhance the validity and reliability of the findings. Results The findings indicate that the ASEAN Way has significantly contributed to regional peace by fostering mutual trust, dialogue, and conflict avoidance among member states. Its principles of consensus and non-interference have enabled cooperation across diverse political and cultural contexts, thereby supporting the development of a shared regional identity. However, the study also reveals limitations, particularly in addressing complex transnational challenges and responding effectively to urgent geopolitical issues due to its consensus-based decision-making process. Conclusions The ASEAN Way remains a vital framework for regional diplomacy in Southeast Asia, promoting stability and cooperation. Nevertheless, to remain effective in the twenty-first century, ASEAN must adapt its traditional principles to address emerging challenges while maintaining its core values. Strengthening flexibility and responsiveness within the ASEAN Way is essential for sustaining regional peace and identity in an evolving global context.
Rafsanjani et al. (Mon,) studied this question.