Modern technology combined with old-fashioned tactics to make World War I an especially brutal conflict. World War I Technology explores how submarines, tanks, and airplanes entered mainstream military use and helped influence the course of the war. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.