The Cyber Domain U.S. Cyber Command, the services, and U.S. partners and allies are working together to make cyberspace a suitable place for military command and control. For the Defense Department, the focus for security in cyberspace includes the full spectrum of 21st century operations. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 185309-C-FTJ45-766.jpg Photo Gallery