Cyber Mission The Ohio National Guard cyber mission assurance team assesses the network during Exercise Cyber Shield 19 at Camp Atterbury, Ind., April 16, 2019. The National Guard is standing up cyber mission assurance teams to help in securing the critical infrastructure that services Defense Department installations. SHARE: Download: Full Size (2.01 MB) Tags: Army Credit: Army Staff Sgt. George B. Davis VIRIN: 190415-Z-XR817-107C.JPG Photo Gallery