The 57th Adversary Tactics Support Squadron is a unit within the United States Air Force, specifically dedicated to adversary air support. Its role is to simulate hostile aircraft and provide air combat training for U.S. forces. This squadron helps in honing the skills of pilots, allowing them to adapt and respond effectively to various threat scenarios. The squadron operates from Nellis Air Force Base, Nevada, as part of the 57th Wing and the Air Combat Command. The 57th ATSS rotates between active duty and reserve components, ensuring continuous readiness for combat missions.