The entrance of America into the tremendous conflict on April 6, 1917, was followed immediately by the mobilization of the entire nation. Business and industry of every character were represented in the Council of National Defense which acted as a great central functioning organization for all industries and agencies connected with the prosecution of the war. Executives of rare talent commanding high salaries tendered their services freely to the government. These were the “dollar a year men” whose productive genius was to bear fruit in the clothing, arming, provisioning, munitioning and transportation of four million men and the conquest of Germany by a veritable avalanche of war material. Out of the ranks of business and science came Hurley, Schwab, Piez, Coonley to drive forward a record-breaking shipbuilding program, Stettinus to speed up the manufacture of munitions, John W. Ryan to coordinate and accelerate the manufacture of airplanes, Vance C. McCormick and Dr. Alonzo E. Taylor to solve the problems of the War Trade Board, Hoover to multiply food production, to conserve food supplies and to place the army and citizenry of America upon food rations while maintaining the morale of the Allies through scientific food distribution and a host of other patriotic civilians who put the resources of the nation behind the military and naval forces opposed to Germany. Every available loom was put at work to make cloth for the army and the navy, the leather market was drained of its supplies to shoe our forces with wear adapted to the drastic requirements of modern warfare. German capital invested in American plants was placed under the jurisdiction of A. Mitchell Palmer as Alien Property Custodian. German ships were seized and transformed into American transports. Physicians over military age set a glorious example of patriotic devotion by their enlistment in thousands. Lawyers and citizens generally in the same category as to age entered the office of the Judge Advocate General or the ranks of the Four Minute Men or the American Protective League which rendered great service to the country in exposing German propaganda and in placing would-be slackers in military service. Bankers led the mighty Liberty Loan and War Savings Stamp drives and unselfishly placed the resources of their institutions at the service of the government.