An Australian C-17 Globemaster III approaches a KC-135 Stratotanker to receive fuel as part of Talisman Saber 2017, July 12, 2017, over the Pacific ocean. One goal of the bi-annual joint exercise between U.S. and Australia forces is to strengthen interservice relationships and increase global security. (U.S. Air Force photo/Staff Sgt. Rachel Waller)