U.S. Army Lt. Col. Nathan Chernecke, 5th Battalion, 159th Aviation Regiment commander, gives a preflight briefing to 633d Air Base Wing leadership at Joint Base Langley-Eustis, Virginia, Oct. 25, 2021. The 5 -159th, which flies CH-47 Chinook rotary aircraft, is part of the 244th Expeditionary Combat Aviation Brigade in the U.S. Army Reserve. (U.S. Air Force photo by Tech. Sgt. Chandler Baker)