Lt. Gen. Jim Kowalski, commander of Air Force Global Strike Command, speaks to a standing-room-only crowd at the 2011 Air Force Association Air and Space Conference and Technology Exposition Sept. 20. The general discussed the importance of nuclear deterrence and global strike capabilities, and Global Strike Command’s accomplishments since reaching full operational capability last year. (U.S. Air Force photo/Airman 1st Class Melissa Goslin)