Air Commandos with the 67th Special Operations Squadron, 352d Special Operations Wing execute a training mission over the local area with emergency response procedures for chemical warfare during an Ability to Survive and Operate (ATSO) exercise 13 Dec., 2017, RAF Mildenhall. The integrated ATSO and chemical, biological, radiological and nuclear (CBRN) readiness exercise prepared airmen on protective measures for CBRN defense.