The US military must protect the country's coastlines, land, and seas. Drones help the military carry out this important mission. This book explains how these drones work and how they can support different branches of the military. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, an infographic, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards.