This is a good sign...
China has asked Japanese soldiers to deliver earthquake relief aid in what would be the first significant military dispatch between the two countries since World War II, officials said Wednesday. ... Though postwar relations between China and Japan have been rocky, the two countries have grown closer in the past 18 months. Japan was the first foreign nation that China turned to for help after the May 12 quake.
China to let Japanese soldiers to help deliver aid
This looks like a good sign in Sino-Japanese relations.