Twilight fell over the city of Tallinn, Estonia, as crews from the 459th Air Refueling Wing were just arriving to their hotels after flying from Iceland earlier in the day of Aug. 5, 2017. Two 459th ARW KC-135R Stratotankers and their crews embarked on a mission last week to provide en route refueling support to the 175th Wing Maryland Air National Guard 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)