Airmen practice donning Mission Oriented Protective Posture (MOPP) gear, Jan. 10, 2018, at Altus Air Force Base, Okla. More than 100 members of Altus AFB received training in self-aid buddy care, weapons skills and chemical, biological, radiological and nuclear defense during the Ability to Survive and Operate (ATSO) Rodeo. (U.S. Air Force photo by Senior Airman Kirby Turbak)