U.S. Army Sgt. Stegan Wood, CH-47 a flight engineer assigned to Joint Task Force-Bravo's 1-228th Aviation Regiment, fires an M240 machine gun from a CH-47 Chinook helicopter during aerial gunnery training, Jan. 29, 2014. Members of the 1-228th conduct aerial gunnery training regularly in order to maintain currency and proficiency on the weapon system. (U.S. Air Force photo by Capt. Zach Anderson)