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
European theatre of World War I convoy system in early 1917. There was one great battle in the waters near Europe: the Battle of Jutland 31 May 1916 – 1 June 1916 between the German High Seas Fleet and the British Grand Fleet. This was one of the largest sea battles in world history though, in some respects, the battle was inconclusive. In the Adriatic, some very limited sea combat took place between the navy of Austria-Hungary and the Allied navies of France, Britain, and Italy. The strategy of the Allies was to blockade the Adriatic and monitor the movements of the Austrian fleet. In general,