Army and Air National Guardsmen operate as blue team defenders in the Cyber City area of operations during exercise Cyber Shield 2016 at Camp Atterbury, Ind., April 20, 2016. Cyber Shield 2016 is an Army National Guard cyber training exercise designed to develop and train cyber-capable forces including members of the National Guard, Army Reserve, Marine Corps and other federal agencies. Army photo by Sgt. Stephanie A. Hargett