Smoke signals
U.S. Air Force Senior Airman Elijah Managan, 121st Air Refueling Wing Security Forces Squadron, Rickenbacker Air National Guard Base, Ohio, simulates providing security while waiting for medical evacuation transport during the SFS annual training at the Alpena Combat Readiness Training Center, Mich., August 6, 2014. During the training, 121st SFS Airmen received instruction on mission planning, land navigation, building entry, casualty evacuation, and how to shoot, move and communicate. (U.S. Air National Guard photo by Airman 1st Class Wendy Kuhn/Released)