United States in World War I 11 approximately 10,000 fresh soldiers were arriving in France daily. In 1917, Congress gave US citizenship to Puerto Ricans when they were drafted to participate in World War I, as part of the Jones Act. In the end, Germany miscalculated the United States' influence on the outcome of the conflict, believing it would be many more months before US troops would arrive and overestimating the effectiveness of U-boats in slowing the American buildup. The United States Navy sent a battleship group to Scapa Flow to join with the British Grand Fleet, destroyers to Queenstown, Ireland and submarines to help guard
Historiography of the causes of World War I from Grand Admiral Alfred von Tirpitz, who supported the idea of starting a war but argued that the German Navy needed more time to prepare and asked that the war be put off until the summer of 1914. The Kaiser agreed to Tirpitz's request. In 1973, the British historian John Röhl noted that in view of what Fischer had uncovered, especially the War Council meeting of December 8, 1912, that the idea that Germany bore the main responsibility for the war was no longer denied by the vast majority of historians, although Fischer later denied claiming that the war was