In his last years as president of the United States, an embattled George Washington yearned for a time when his nation would have "the strength of a Giant and there will be none who can make us afraid." At the turn of the twentieth century, the United States seemed poised to achieve a position of world power beyond what even Washington could have imagined. In The American Century and Beyond: U.S. Foreign Relations, 1893-2014, the second volume...