US Air Force (USAF) STAFF Sergeant (SSGT) John Sad (foreground) and USAF Technical Sergeant (TSGT) Eddie Swenson, 119th Maintenance Squadron (MXS), Hector Field (FLD), North Dakota (ND), ND Air National Guard, drill holes in a base plate for machine gun turrets. The turrets are designed to hold a machine gun on a High-Mobility Multipurpose Wheeled Vehicle (HMMWV) and are being made by the 119th MXS for US Army (USA) units based in Iraq