Wilson’s protest—the so-called First Lusitania Note—was the initial salvo in what would become a two-year war of paper, filled with U.S. protests and German replies, made against a backdrop of new attacks against neutral ships and revelations that German spies were at work in America. Wilson did all he could to keep America neutral in action and in spirit, but Secretary Bryan did not think he tried hard enough, and resigned on June 8, 1915.

