Image 0 of 9Members of the Defense POW/MIA Accounting Agency conclude a repatriation ceremony in Kiribati, July 25, 2017, for service members missing from the battle of Tarawa. (Bill Dasher/DoD) A Marine orders his squad into position during a beach assault during exercise Sea Breeze 2017 in Mykolayivka, Ukraine, July 19, 2017. (Staff Sgt. Marcin Platek/Marine Corps) Sailors perform maintenance on the 5-inch gun aboard the Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) on July 25. (MC3 Robert S. Price/Navy) U.S. paratroopers conduct urban breach training as part of Exercise Rock Knight at Pocek Range in Postonja, Slovenia, July 20, 2017. (Paolo Bovo/Army) Marines provide cover fire for their convoy with an M240B machine gun during a Motorized Fire and Movement Exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., July 23, 2017. (Sgt. Kassie L. McDole/Marine Corps ) Members of U.S. Navy Parachute Team "The Leap Frogs," jump from a C-130 Hercules aircraft during a skydiving demonstration at the Summer X Games in Minneapolis, July 15, 2017. (PO3 Class Kelsey L. Adams/Navy) South Carolina Army National Guard members search a building before breaching a room during the Spur Ride at McCrady Training Center in Eastover, S.C., July 14, 2017. (Spc. Chelsea Baker/Army National Guard) Air Force Capt. David Neville, a 13th Fighter Squadron F-16 Fighting Falcon pilot, conducts a flight sortie above northern Japan, June 12, 2017. (Staff Sgt. Deana Heitzman/Air Force) A judge gives the thumbs-up gesture, signaling that a member of the Chilean's special operations team hit his target during the FBI shooting event at Vista Alegre in Villa Hayes, Paraguay, July 19, 2017, part of Fuerzas Commando 2017. (Sgt. Christine Lorenz/Army)