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