Visitors to an open house event at the Iowa Air National Guard base in Sioux City, Iowa tour a U.S. Air Force KC-135 Startotanker assigned to the 185th Air Refueling Wing while parked on the ramp at the Air Guard Base in Sioux City, Iowa on June 10, 2017. U.S. Air National Guard photo by Master Sgt. Vincent De Groot 185th ARW Wing PA