Current European Union drone-defence efforts face several major challenges. Many of the systems being procured are already outdated or lack the sensitivity to reliably detect and track small, low-altitude drones, leaving radar blind-spots and poor early warning capabilities. Highly capable counter-drone platforms also tend to be prohibitively expensive, making it inefficient to counter cheap, mass-produced threats with costly missiles and interceptors. As a result, until integrated, affordable, and interoperable detection and interdiction systems are fielded across member states, Europe remains exposed to increasingly frequent and sophisticated drone incursions.