18th LRS conducts ATSO training
An Airman tightens his M50 gas mask while putting on his Mission Oriented Protective Posture gear during Ability to Survive and Operate training at Kadena Air Base, Japan, Sept. 12, 2019. The equipment is donned in the event of a chemical, biological, radiologic or nuclear threat. (U.S. Air Force photo by Naoto Anazawa)