In April 1917 the illusion of isolation was destroyed. America came to the end of innocence, and of the exuberant freedom of bachelor independence. . . . To help ourselves manage [the responsibilities of world power], we have replaced the illusion of isolation with a new illusion of omnipotence. That screen, too, must fall. —“How We Entered World War I,” Barbara Tuchman What does the author’s first use of the key term illusion suggest about American foreign policy? The United States causes many problems. The United States could not remain separate. The promotion of democracy is a false policy. It is unsafe for one country to have too much power.