A United States Air Force Tactical Air Control Party, commonly abbreviated TACP, is an individual or team of United States Air Force Special Warfare Airmen with AFSC 1Z3X1, who are aligned with conventional, Special Operation Forces, and Tier 1 combat maneuver units. They provide precision terminal attack control and terminal attack guidance of U.S. and coalition fixed- and rotary-wing close air support aircraft, artillery, and naval gunfire; establish and maintain command and control (C2) communications; and advise ground commanders on the best use of air power.
TACPs are Special Warfare airmen who operate in multiple contexts. Most commonly, TACPs serve as the principal Air Force liaison element to the United States Army (USA), where they align with combat maneuver echelons from Corps to Battalion level. The TACP provides its aligned Army unit with expertise in planning and executing airpower in support of the land component commander's scheme of maneuver. In special operations settings, TACPs deploy with "white" SOF units, including Air Force Special Tactics, Army Special Forces, and Navy SEAL teams, as well with Army Rangers and Joint Special Operations Command Special Mission Units, acting primarily as precision airstrike controllers, communications, and command-and-control experts.
https://en.wikipedia.org/wiki/United_States_Air_Force_Tactical_Air_...