The only resolution to the Japan question is to balkanize it completely. One of the reason why Japan still have not accepted their role in the atrocities in East Asia today is because they have always harbored the idea that there will be another opportunity to try and conquer all of East Asia. The U.S broke their military conquest in 1945, but did not break the ideological/psychological desire for conquest. The psychology for conquest must be broken, if China or any other East Asian nation is to ever have long term peace and stability in the region. The only way to break the psychological capacity of Japan is to defeat it completely this time around either in a planned economic collapse that will create social and political chaos through revolution/civil war, or by uncontested military means by China. Once their psychological capacity for conquest is broken, will Japan ultimately accept the role they played in history and have peace going forward.