Whether China can achieve its economic and political goals depends very much upon whether PRC's domestic stability can be maintained and large-scale devastating military conflict, either internally with Taiwan or externally with major foreign powers, can be avoided. This article will speculate on China's security role in the region and in the world ten to fifteen years hence, and assess China's likely intentions, capabilities, and strategies in domestic and foreign affairs, in light of the changes in China's geopolitical environment.