Sino-Japanese relationship

Last April anti-Japanese sentiment in China displayed massive demonstration in several cities.

Japan is more or less America's bitch for losing the war. America doesn't like Communists, and China's a Communist country. Because of this, many of the Japanese war criminals were never convicted. As a result, you get Japanese worshipping rapists who got a hero's grave. Many Japanese still believe no human rights violations occured during their occupation and conquest of Asia; this statement is on par with saying Hitler's Nazis didn't kill any Jews.

China views Japan's denial of war crimes as an insult, and Japan is angry over their heroes being defamed. This issue will probably never be resolved since it also benefits both sides; in Japan it's favored since the whole issue brings up national identity; in China it's favored since it gives the people something to be mad about and therefore lowers any chances of rebellion against the state.