World War I, which merely grazed the United States while decimating Europe, had several key markings of an Unraveling-era conflict for all participants. It began pointlessly, ended vindictively, and—notwithstanding all the carnage—settled nothing. For America, its principal consequence was to shape (among the transatlantic Lost Generation of war-ravaged soldiers) a new cadre of totalitarian leaders that U.S. forces would have to encounter again. Adolf Hitler, Benito Mussolini, Hideki Tojo, and Francisco Franco were all between the ages of twenty-one and thirty-one in August 1914—as were Ho Chi
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