US Air Force (USAF) AIRMAN First Class (A1C) Brian Lail, with the 48th Security Forces Squadron (SFS), RAF Lakenheath, England (ENG), participates in a simulated ground attack for a local Tactical Evaluation exercise. The three-day exercise tests the Liberty Wing's ability to organize, train and equip forces to survive and operate in real-world events. The AIRMAN is holding a 5.56 mm M16A2 Automatic Rifle