In an era marked by geopolitical fragmentation and global crises, how can we envision a more stable and inclusive planetary order? This pioneering volume calls for a radical rethinking of international relations—moving beyond the Westphalian state system to embrace a civilizational dialogue rooted in shared histories, values, and mutual concern.The collection brings together leading scholars to explore the idea of tianxia (All under heaven) as a conceptual and moral framew...