The C-UAS Protection Cycle are the basic concepts that support organizations in developing the minimum viable security needs which will give their asset or location an adequate level of protection. All four phases of the C-UAS Protection Cycle contribute to the overall C-UAS Strategy that will govern an asset or location protection.

Protection Phase 1: focuses on developing the processes that will be used to manage and respond to UAS threats.
Protection Phase 2: examines the various C-UAS technologies that are available to mitigate these risks.
Protection Phase 3: tests the operational procedures and deployed C-UAS technologies through Red Teaming adversarial testing to ensure all operational procedures (phase 1) and implemented C-UAS technology (phase 2) are effective as an overall defense of an asset or location.
Protection Phase 4: highlights tactical responses and processes training needs identified (from Phases 1-3), ensuring that those responsible for security are fully equipped and confident to handle any UAS threat.
Reference- Stadia Protection and Mitigation from Drone Incursion and Threats