The harbour protection solution developed by ECA Group provides an innovative unmanned solution based on USV and UAV interaction. Due to their permanence at sea or in air, their agility to operate allowing to operators to stay out of danger zones, these drones detect, recognize and intervene rapidly against surface threats. Combined with an underwater sonar for divers intrusion detection, the operator gets the complete situation awareness and adapts its response for protecting coastal maritime assets harbour, maritime infrastructure, flee... Self-contained in a truck, this easy to deploy solution (less than 2 hours by two operators) provides a high level of integration between sub-systems and mission & data management systems.