Command and Control Two Marines participate in a command and control exercise at the Marine Corps Air Ground Combat Center Twentynine Palms, Calif., May 6, 2017. Enhancing command and control with Joint All Domain Command and Control, or JADC2, is one effort of the Defense Department’s chief information officer that supports the National Defense Strategy. SHARE: Download: Full Size (1.19 MB) Credit: Marine Corps Lance Cpl. Becky L. Calhoun VIRIN: 170506-M-XO599-133M.JPG Photo Gallery