Marine Corps Cyberspace Operations Group (MCCOG) secures, operates, and defends the Marine Corps Enterprise Network (MCEN) in support of the Fleet Marine Force (FMF) and Supporting Establishment by conducting Department of Defense Information Network (DODIN) Operations and Defensive Cyberspace Operations Internal Defensive Measures (DCO-IDM); exercising Command and Control (C2); and providing forces, communications control, and Cybersecurity Services in order to enable freedom of action across all warfighting domains and functions, while denying the same to our adversaries.