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Pretty much everyone agrees that China is the only nation with any chance of challenging American military superiority in the foreseeable future. So it's awfully strange that the Department of Defense's new Quadrennial Defense Review has little to say about the country. Explicit discussion is mostly limited to a single paragraph atop page 60, which begins with the banal observation that "China's growing presence and influence in regional and global economic and security affairs is one of the most consequential aspects of the evolving strategic landscape in the Asia-Pacific region and globally." The Defense Department then reaches the banal conclusion that our two countries "should sustain open channels of communication to discuss disagreements in order to manage and ultimately reduce...