Airmen assigned to Altus Air Force Base, Okla., practice donning Mission Oriented Protective Posture (MOPP) gear, Jan. 10, 2018, at Altus AFB. 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)