It is hard for China to grow westward. When China’s power is ascendant, it can grow north, south, or east toward the Pacific. This is easier said than done. Japan continues to be the major regional power. China would still face certain defeat against Japan, especially with US support of the Japanese. So, China is mainly focused on two things. Controlling its chaotic domestic political and economic situation as growth rates have slowed. And building its military. First for resistance and then for offensive action in the region.