Senior Airman Hailey Salyers (right), 82nd Medical Operations Squadron, assists 82nd Logistic Readiness Squadron Senior Airman Kristopher Kopiczak with his helmet strap as Airmen get into MOPP Level 2 gear at Sheppard Air Force Base, Texas, June 27, 2018. Airmen put on the MOPP gear, or mission oriented protective posture, during Ability to Survive and Operate training, which trains and gauges an Airman's ability to perform their duties in the protective gear. The equipment is put on in the event of a chemical, biological, radiologic or nuclear threat. (U.S. Air Force photo by John Ingle)