An AC-130W Stinger II aircraft and aircrew from the 16th Special Operations Squadron arrives to Naval Air Station North Island, Calif., in support of Exercise Emerald Warrior/Trident. Emerald Warrior/Trident is the largest joint special operations exercise where U.S. Special Operations Command forces train to respond to various threats across the spectrum of conflict. (US Air Force video by Master Sgt. Alexander Farver) More