Theme: Military, Weapons, Innovation. The United States military is one of the strongest in the world. Keeping the country safe takes power and innovation. From smart guns and heavily armed tanks to tiny spy drones, all branches of the U.S. military have powerful high-tech weapons at their fingertips. Learn about the mightiest weapons in the military and how they keep us safe. Space 8, a Hi-Lo nonfiction series for young adults, reads like an infinity of facts. This series is full of high-interest topics that grab readers from the first page. Each book features stories about fascinating people and places and engages readers with compelling information; full-color photographs and illustrations; and detailed graphic elements including charts, tables, and infographics. Readers will find these books both captivating and inspiring.