Marine Corps Cpl. Courtney Zielinski, a dog handler, controls Dundee, a military working dog, while training at Kadena Air Base in Okinawa, Japan, July 14, 2017. Marine Corps photo by Sgt. Rebecca L. Floto
Navy Petty Officer 3rd Class Robert Marsh hoists Petty Officer 2nd Class Ruslan Garver into a helicopter during drills in the U.S. 5th Fleet area of operations, July 14, 2017. Navy photo by Petty Officer 3rd Class Evan Thompson
Army Sgt. Anthony Coppola guards a post at Shoalwater Bay, Queensland, Australia, July 14, 2017, during Talisman Saber with Australian and New Zealand forces. Army National Guard photo by Sgt. Alexander Rector
An AN/TWQ-1 Avenger air defense system fires a missile over the Black Sea at Capu Midia Training Area in Romania, July 19, 2017. Photo by Army Pfc. Nicholas Vidro
Soldiers use a Boeing CH-47 Chinook helicopter to slingload an M777 howitzer during air assault training at Fort Campbell, Ky., July 19, 2017. The soldiers are assigned to aviation and artillery units. Army photo by Sgt. Marcus Floyd
A soldier applies face paint to prepare for a live-fire training event as part of exercise Saber Guardian 17 in Koren, Bulgaria, July 15, 2017. Saber Guardian is a U.S. Army-led, multinational exercise. Army photo by Spc. Winterlyn Patterson
Two boys race during an event with U.S. service members at a school in Lautoka, Fiji, July 14, 2017. The service members are participating in the Pacific Angel 2017 mission. Air Force photo by Tech. Sgt. Benjamin W. Stratton