This concluding volume of the 15-part series, The World’s Story, originally crafted by Eva March Tappan, delves deeply into the First World War. Edited by Horatio W. Dresser, it explores the events that led to the war, the fierce battles and innovative war machinery, alongside the intricate political and diplomatic maneuvers of the time. This volume also reflects on the profound human and financial costs of the conflict. - Summary by Sonia