Image 0 of 11Joint terminal attack controllers prepare for a training exercise on the Nevada Test and Training Range July 19, 2017. (Senior Airman Kevin Tanenbaum/Air Force) Airmen hoist Staff Sgt. Pedro Mangual-Rivera up to a UH-1N Iroquois helicopter during rescue hoist training at Camp Gilbert C. Grafton near Devils Lake, N.D., July 20, 2017. (Senior Master Sgt. David H. Lipp/Air National Guard) Reserve Citizen Airmen from the 465th Air Refueling Squadron at Tinker Air Force Base, Okla., deliver fuel to an F-16 Fighting Falcon from Spangdahlem Air Base, Germany, July 25, 2017. (Tech Sgt. Lauren Gleason/Air Force) U.S. Army Paratroopers from 1st Battalion, 143rd Infantry Regiment, 173rd Airborne Brigade, train in preperation for heavy weapon live fire during excercise Swift Response 17 in Cincu, Romania on July 26, 2017. (Spc. Cheyenne Shouse/Army) U.S. Marines with 1st Battalion, 7th Marine Regiment, Special Purpose Marine Air-Ground Task Force-Crisis Response-Central Command, provide cover fire during a live fire range in Jordan, July 15, 2017. (Cpl. Kyle McNan/Marine Corps) A member of the U.S. Navy Parachute Team, the Leap Frogs, prepares to land with pyrotechnics on July 27 during a night aerial demonstration at Cheyenne Frontier Days Arena. (MC2 Pyoung K. Yi/Navy) A U.S. Air Force B-1B Lancer assigned to the 9th Expeditionary Bomb Squadron, deployed from Dyess Air Force Base, Texas, taxis through a wash rack, also known as a bird bath July 26, 2017, at Andersen AFB, Guam. (Staff Sgt. Joshua Smoot/Air Force) WWII veteran Edmund DelBarone, center, chats with Command Master Chief Paul King, left, during a tour at Naval Station Newport, in Newport, R.I., July 27, 2017. DelBarone, a 96-year-old World War II veteran, once dreamed of returning to a Navy installation to reminisce about his naval career, and thanks to help of a nonprofit, it became a reality. (Jennifer McDermott/AP) Petty Officer 2nd Class Kyle Botts, a company commander in charge of Tango Company 194, conducts incentive training aboard Training Center Cape May N.J., July 27, 2017. (PO2 Richard Brahm/Coast Guard) Sailors assigned to NCHB-1 conducting backload operations onboard USNS Lopez lift a warping tug in Jacksonville, Fla. , on July 23, 2017. (Lt. Arthur Stone/Navy) Army Reserve soldiers return from a reconnaissance patrol the night before a morning mission during a combat support training exercise at Fort Hunter Liggett, Calif., July 21, 2017. (Master Sgt. Michel Sauret/Army)