28th Security Forces Squadron personnel participate in an annual training event to hone their group tactical skills at Ellsworth Air Force Base, S.D., May 9, 2017. Airmen participated in group exercises which focused on reviewing different formations for tactical movement, workplace violence de-escalation via non-lethal and lethal means, an active shooter exercise and a “quick draw” event that involved simulating a wounded support hand. (U.S. Air Force photo by Airman Nicolas Z. Erwin)