U.S. Air Force Capt. Nathan Fisher, 23rd Expeditionary Bomb Squadron weapons systems operator, conducts a preflight inspection for a B-52 Stratofortress during Exercise Diamond Storm at Royal Australian Air Force Base Darwin, Northern Territory, Australia, May 9, 2019. Exercises and training opportunities like Diamond Storm help the U.S. build stronger a relationship with its Australian ally. (U.S. Air Force photo by Staff Sgt. Joshua Edwards)