Capt. Shawn McDonald, 816th Expeditionary Airlift Squadron pilot, conducts preflight checks inside a C-17 Globemaster III in support of Combined Joint Task Force - Operation Inherent Resolve at Al Udeid Air Base, Qatar, Oct. 28, 2016. The squadron is actively engaged in tactical airlift operations supporting the Mosul offensive. (U.S. Air Force photo by Senior Airman Jordan Castelan)