We are living in an era of multiple crises in which various crises such as pandemic, democracy regression, climate change, conflicts among nations, terrorism and cyber-attacks simultaneously impact on humanity. In order to overcome all those adversities that could put humanity into jeopardy, sustainable peace and inclusive prosperity are more essential than short-sighted and superficial approaches. Also, as the multifaceted crises threat the entire world going beyond national borders, cooperation among nations is desperately and urgently needed in responding to them. Therefore, this roundtable will invite ambassadors from major nations to have in-depth discussions on the collaboration among nations and the role of diplomacy to achieve sustainable peace and inclusive prosperity in the face of the multiple crises.