<h1>Trilateral diplomatic cooperation advances joint approaches to demographic, disaster, security and economic challenges among neighbouring states.</h1> Trilateral diplomatic cooperation among Japan, China and South Korea is being advanced through ministerial meetings to develop coordinated responses to shared challenges including low birth rates, natural disasters, cultural exchanges and regional security concerns. The ministers prepared for a forthcoming summit, addressed North Korea's missile and nuclear programmes and broader geopolitical developments, and arranged separate bilateral talks and a resumed high-level economic dialogue between Japan and China, establishing procedural channels for political coordination, crisis management, and economic consultation.