A USAF F-16C aggressor aircraft - the camouflage scheme emulates Soviet markings with multiple shades of blue and gray. An aggressor squadron or adversary squadron (in the US Navy and USMC) is a squadron that is trained to act as an opposing force in military wargames. Aggressor squadrons use enemy tactics, techniques, and procedures to give a realistic simulation of air combat (as opposed to training against one's own forces).