Exercise tests Airmen's ability to survive and operate
An Airman from the 354th Fighter Wing refers to her Airmans Manual during the Ability to Survive and Operate training Feb. 12, 2009 at Eielson Air Force Base, Alaska. ATSO training is implemented to maintain readiness in the event of a chemical, biological, nuclear, or high explosive attack. (U.S. Air Force photo/Airman 1st Class Willard E. Grande II)