U.S. Air Force Senior Airman Jarrett Welton aims a rubber M16 A2 rifle at Senior Airman Kollin Ailworth during Defensive Fighting Position training on Torii Beach, Japan, March 20, 2014. Airmen frequently conduct training to prepare for real-world scenarios and enhance their combat capabilities. Welton and Ailworth are both 18th Civil Engineer Squadron heating, ventilation, air conditioning and refrigeration journeymen. (U.S. Air Force photo by Naoto Anazawa)