"The focus of ATP 3-01.81 Counter-Unmanned Aircraft System (C-UAS) Techni ques is training and educating the force while assisting maneuver units in developing C-UAS Tactics, Techniques, and Procedures (TTP). It addresses exploitation of low, slow, small (LSS) UAS as an unconventional air threat and modifier to surveillance and targeting actions. Defending against UAS is a difficult task and no single solution exists to defeat all categories of the LSS threat. Collaborative and integrated planning of sensors and warning capabilities as well as shared intelligence between echelons is essential. Coordination with air-ground integration or airspace management personnel for updated intelligence and defense support can help minimize air threat effects reducing damage and protecting personnel and equipment as well as friendly UASs operating within the area of operation. This publication consists of four chapters and one appendix concentrating on planning for an unpredictable threat environment that has the potential of coordinated attack aided by LSS UASs."
Department of the Army: http://www.apd.army.mil/