How did the murder of one man, the Archduke Franz Ferdinand of Austria, escalate into a global conflict that took the lives of more than 9 million soldiers and 7 million civilians? In World War I: The Great War to End All Wars, readers ages 12 to 15 learn about the events that led to the first battles of WWI all the way through the war's final hours. This book asks readers to examine primary source stories, photographs, artwork, and literature produced by people involved in the war to explore a complete picture of a global conflict that still resonates around the world 100 years after it ended.