A well-planned and properly executed DCO mission will enable the cyber warrior to repel attacks and rapidly prepare for offensive action. In this course, you'll learn the principles of Defensive Cyber Operations, including measures and responses. You'll explore cybersecurity and cyberspace operations in DCO. Next, you'll look at DCO analytics, missions, and operating domains. You'll explore the role of the mission owner and network owner in DCO, as well as planning considerations. Finally, you'll learn about cyberspace threats that may occur during the course of maneuver operations and common security and system tools used in DCO.