Iowa U.S. Air National Guard firefighters approach a fire in a simulated aircraft. Iowa U.S. Air National Guard firefighters approach a fire in a simulated aircraft emergency during an operational readiness exercise in Sioux City, Iowa, on Aug. 12, 2005. The firefighters are attached to the 185th Air Refueling Wing. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 872752-E-TNF93-040.jpg Photo Gallery