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
Convoys in World War I those between Britain and its European allies, and between Britain and neutral countries. The commercial convoys between England and the Netherlands or Norway are examples, as are the coal convoys between England and France. The second category consists of the escorts of warships, usually troopships, such as those from the Dominions in the early stages of the war. These formed the earliest convoys, but "probably the most overlooked category". The British Grand Fleet itself could be included in this category, since it was always escorted by a destroyer screen in the North Sea and frequently by long-range "Coastal" and "North