Dennis Lieneke and Matt Backeberg pull fire lines off a truck in preparation for spot fires at the U.S. Air Force Academy, Colo., June 28. Both are firefighters assigned to the 721st Mission Support Group at Cheyenne Mountain Air Force Station. The Waldo Canyon fire has destroyed more than 18,000 acres and 340 homes in the Colorado Springs area, making it the most destructive fire in Colorado history. (U.S. Air Force photo by Staff Sgt. Christopher Boitz)