TOKYO -- As Japan finds itself in the middle of Washington and Beijing's feud, a lesson it learned 10 years ago about China may give a glimpse of diplomatic hurdles coming in the near future.
On Sept. 7, 2010, a Chinese trawler rammed into a Japan Coast Guard vessel near the Japanese-administered Senkaku Islands, which China claims and calls the Diaoyu. The captain of the trawler was detained, spiking tensions between the countries and a wave of anti-Japan protests across China.






