Air commandos from the 4th Aircraft Maintenance Squadron fulfill their duties at Hurlburt Field, Fla., July 7, 2016. The 4th AMU works on the AC-130U Spooky gunship. The AC-130's main mission is to provide close air support, air interdiction and armed reconnaissance and was used in the May 22, 2017, counterterrorism raid against al-Qaida in the Arabian Peninsula operatives in the Marib governorate of Yemen. Air Force photo by Airman Dennis Spain