Marking the 100-year anniversary of World War I, these fascinating books cover the heroes and horrors of "The War to End All Wars." Concise writing, historical photographs, and detailed diagrams show the main events of one of the deadliest wars of all time. Readers come to know the leaders, soldiers, battles, and weapons that made the Great War a global conflict never to be forgotten. Aligned to Common Core Standards and correlated to state standards. Abdo & Daughters is an imprint of Abdo Publishing, a division of ABDO.