Three 175th Wing Maryland Air National Guard A-10C Thunderbolt IIs fly off the southern coast of Greenland while en route to Iceland Aug. 3, 2017. Two 459th Air Refueling Wing KC-135 Stratotankers and their crews embarked on a mission last week to provide en route refueling support to the 175 WG as the ANG unit made its way to Estonia to participate in a state partnership program. On the way to Estonia, the units stopped in Iceland to refuel. (U.S. Air Force photo/Tech. Sgt. Kat Justen)