At the very end of 2015, Beijing introduced the ambitious first wave of Chinese President Xi Jinping's comprehensive plan for military reform. The changes -- which include a more powerful strategic weaponry command, a new ground force headquarters, and an organization called the Strategic Support Force -- are the culmination of a decadelong effort to improve the People's Liberation Army (PLA). The focus is on military capability and overcoming a deep-rooted political intransigence that has stymied the development of China's armed forces....