Airmen from the 1st, 2nd and 3rd Combat Camera Squadron use smoke for cover as they cross through a field during the tactical portion of the Ability to Survive and Operate exercise Jan. 14, 2014, at North Auxiliary Air Field, S.C. The 1st Combat Camera Squadron located at Joint Base Charleston, S.C., hosted the exercise from Jan. 6 through 17. (U.S. Air Force photo/Senior Airman Dennis Sloan)