185th Air Refueling Wing, Chief Master Sgt. Phil Frank explains the mission of the 185th ARW to members of area law enforcement agencies while in the main hangar at the Iowa Air National Guard Base in Sioux City, Iowa on June 29, 2016. Members of the group were given the opportunity to see to see a KC-135 up close and ask questions about the unit and the unique mission of the mid-air refueling aircraft while visiting the base during a law enforcement seminar held at the base dining facility. (U.S. Air National Guard photo by: Master Sgt. Vincent De Groot/released)