For history buffs, students, and anyone interested in the 20th century, this book reveals why World War I began, explores the "guns of August," describes the horrors of trench warfare and the first uses of poison gas, and explains why the Americans were so slow to enter the war. From the eastern front to the west, from Gallipoli to the Marne, from the Lafayette Escadrillo to Lawrence fo Arabia, the book tells the whole story of "the war to end all wars."