China has reportedly declined to host the diplomatic meeting known as the Tripartite Summit with Japan and South Korea. This traditionally annual summit provides these powerhouse nations with an eminent platform for discussing diplomatic and economic matters. The announcement comes amidst increasing tensions in this East Asian diplomatic triangle. The official reasons behind China’s decision remain undisclosed.

Japan has often used these Tripartite Summits to foster better relations with China and South Korea amidst historical disputes and territorial issues. Many Japanese citizens are concerned that China's refusal could imply a setback in their relationship which could affect not only diplomatic dialogues, but also their economic cooperation.

In the US or EU, such issues typically involve diplomatic efforts to understand and resolve the situation rather than refusal. Should a similar situation arise, it would likely be handled with diplomatic dialogues, through ambassadors or negotiations.