which is a source of political conflifct between china, japan and south korea

One source of political conflict between China, Japan, and South Korea is the territorial disputes over the ownership of certain islands in the East China Sea. The Diaoyu/Senkaku Islands are claimed by both China and Japan, while the Dokdo/Takeshima Islands are claimed by both South Korea and Japan. These disputes have led to tensions and periodic escalations between the three countries.