Red Cell challenges cyber defenders in multi-force exercise Members of the Army National Guard, Air National Guard, Army Reserve and civilian agencies prepare to engage in cyberattacks as Red Cell members in Cyber Shield 17 at Camp Williams, Utah, April 27, 2017. The National Guard is working closely with its interagency partners and the private sector to strengthen network cybersecurity and capabilities to support local responses to cyber incidents in Cyber Shield 17. Army photo by Sgt. Michael Giles SHARE IMAGE: Download Image: Full Size (0.84 MB) Tags: 100th Mobile Public Affairs Detachment, 100th MPAD, ARMY NATIONAL GUARD, Cyber Shield 17, CS17, cyber awareness training, Cyber Defense Operations Exercise, Cybershield17, U.S. Army Reserve, Air National Guard Photo By: Sgt. Michael Giles VIRIN: 170427-Z-WL838-029.JPG Photo Gallery