7 SFS airmen prepare for Global Strike Challenge
Airman 1st Class Sean Hollearn, 7th Security Forces Squadron, provides cover for his wingman during training Oct. 13, 2011 at Dyess Air Force Base, Texas for the upcoming Global Strike Challenge. During the competition Dyess security forces will compete in marksmanship on the M-4, M-9, M-240 and M-230 weapons systems, combat tactics and priority resource defense, and the mental and physical challenge event. (U.S. Air Force photo by Airman 1st Class Jonathan Stefanko/ Released)