Former U.S. Defense Department official Michael Pillsbury warned on Tuesday that a serious conflict between the U.S. and China could potentially break out.

Speaking last night at Asia Society New York about his new book The Hundred-Year Marathon: China’s Secret Strategy to Replace America as the Global Superpower, Pillsbury said that over the past few decades, most U.S. government analysts — including himself — thought that China’s policy of “bide your time and keep your head down” would persist until around mid-century before the country tried to challenge the American “hegemon” and its interests in Asia.

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