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The success of formalized Dissimilar air combat training (DACT) led to transition of Navy Instrument Training Squadrons equipped with the A-4 into Adversary Squadrons at each Master Jet Base.
The Sun Downers operate as part of the U.S. Navy Reserve's fleet adversary program, providing dissimilar air combat training to fleet strike fighter and Marine fighter attack squadrons, as well as U.S. Air Force, Air Force Reserve and Air National Guard fighter squadrons.