This publication, Army Techniques Publication ATP 3-09.13 The Battlefield Coordination Detachment July 2015, provides doctrine for the battlefield coordination detachment (BCD) when interfacing with other Service components to include multinational forces. The battlefield coordination detachment is an Army liaison located in the air operations center that provides selected operational functions between the Army forces and the air component commander (Joint Publication JP] 3-03). The ATP 3-09.13 provides guidance for joint task forces, subordinate and Service components. The BCD exists to support the Army forces (ARFOR) commander's maneuver forces. The principal audience for ATP 3-09.13 is all members of the Profession of Arms operating as part of an air operations center (AOC). Commanders and staffs of Army headquarters serving as joint task force or multinational headquarters should also refer to applicable joint or multinational doctrine concerning the range of military operations and joint or multinational forces. Trainers and educators throughout the Army will also use this manual. ATP 3-09.13 makes numerous changes from Army Tactics, Techniques, and Procedures (ATTP) 3-09.13. It includes a brief discussion on the activities of the BCD during the operation phases. Information on the ground liaison detachments (GLD) and reconnaissance liaison detachments (RLD) has also been added including an appendix. ATP 3-09.13 is consistent with ATTP 3-09.13 while adapting updated terminology, concepts, definitions and references as necessary. The topics include the discussions of the BCD's coordination of objectives, guidance, and priorities received from the ARFOR commander and staff with the AOC's staff. Specific missions include processing requests for tactical air support, monitoring and interpreting the land operational situation, providing the necessary interface for the exchange of current intelligence and operational data, coordinating air and missile defense, and airspace management. Additionally, the BCD supervises the GLD and RLD that coordinate Army forces with Air Force reconnaissance, fighter, and airlift wings (JP 3-30). ATP 3-09.13 contains three chapters and five appendices. Chapter 1 discusses the BCD's mission and functions. Chapter 2 discusses the BCD's organization and responsibilities. Chapter 3 discusses the BCD's operations process. Appendix A discusses the BCD's relationship to the Navy and Marine Corps forces. Appendix B reviews the request actions for the Army Tactical Missile System (ATACMS) and Guided Multiple Launch Rocket System (GMLRS). Appendix C discusses information management. Appendix D reviews training. Appendix E discusses the roles and responsibilities of the GLD and the RLD.