This course aims to impart and introduce the fundamental knowledge needed to understand Counter Uncrewed Aerial Systems (CUAS), including current United States law and legislation. It is directly related to the established courses regarding Drone Vulnerability and Risk Assessment (DVRA) and Drone Emergency Response Planning (DERP) and is directly linked to the foundations of each as you gain a better understanding of the fast-paced evolution of commercial drones and how to begin implementation of the "air domain" in your security approach and program.