Making the 100th anniversary of World War I, this series presents the dramatic course of events of the Great War and the conflict's lasting impact on the world. Discover the political and social turmoil of the time, the horrific conditions of trench warfare, the gripping accounts of naval combat, and the hero worship of flying aces. Short biographies and first-hand accounts help young readers relate to this world-changing period in history. World War I: 1917-1918-the Turning of the Tide tells the story of the decisive last two years of the Great War. Events in 1917 had a dramatic influence. As Russia withdrew from the war to focus on its own political revolution, the United States entered into it. With both sides exhausted, fresh American forces gave the Allies the advantage and helped bring the conclusion and an armistice with Germany. Book jacket.