A KC-135 Stratotanker from the Wisconsin Air National Guard prepares for takeoff during Sentry Aloha 19-1, Dec. 13, 2018. Sentry Aloha 19-1 exercises have been conducted by the HIANG for over 20 years. This iteration of the exercise will involve more than 800 personnel and 30 aircraft from nine states and 12 different military units. (U.S. Air Force photo by Tech. Sgt. Heather Redman)