Staff Sgt. Anthony Ray, Staff Sgt. Lawrence Hudecek

Staff Sgt. Anthony Ray, Staff Sgt. Lawrence Hudecek and Master Sgt. Daniel Emken, members of the 155th Security Forces, clear the stairwell in the main hangar at the 155th Air Refueling Wing, Lincoln, Neb., during an active shooter exercise April 24, 2014. The Nebraska National Guard partnered with Lincoln Police Department, and various emergency response agencies during the first ever exercise of this kind.