180708-M-IZ659-0304 CAMP TITIN, Jordan (July 8, 2018) U.S. Marines assigned to Combat Logistics Battalion-26 (CLB-26), 26th Marine Expeditionary Unit (MEU), take cover from demolitions during sustainment training at Camp Titin, Jordan, July 8, 2018. Iwo Jima is the flagship for the Iwo Jima Amphibious Ready Group and, with the embarked 26th Marine Expeditionary Unit, is deployed to the U.S. 5th Fleet area of operations in support of naval operations to ensure maritime stability and security in the Central region, connecting the Mediterranean and the Pacific through the western Indian Ocean and three strategic choke points. (U.S. Marine Corps photo by Cpl. Santino D. Martinez/Released)
An Air Force F-35A Lightning II, P-51D Mustang and VS Spitfire perform a heritage flight during the 2018 Royal International Air Tattoo at RAF Fairford, United Kingdom. (Tech Sgt. Brian Kimball/Air Force)
More than 60 members of the Kentucky Air National GuardÕs 123rd Airlift Wing are reunited with friends and family as they return to their home base in Louisville, Ky., July 6, 2018, after completing a four-month deployment to the Persian Gulf region in support of Operation Inherent Resolve. (Master Sgt. Phil Speck/Air National Guard)
A rainbow forms over the USS Missouri Battleship Memorial as it sits moored at Ford Island during the 2018 Rim of the Pacific exercise. Twenty-five nations, 46 ships, five submarines, about 200 aircraft and 25,000 personnel are participating in RIMPAC from June 27 to Aug. 2 in and around the Hawaiian Islands and Southern California. (MC2 Justin R. Pacheco/Navy)
Morgan Zoufal is comforted as she reacts to seeing the name of her late fiancee, Marine Sgt. Dietrich A. Schmieman, on a marble monument honoring the 15 Marines and one Navy corpsman who died in a 2017 plane crash near Itta Bena, Mississippi. (Rogelio V. Solis/AP)
A general Atomics Aeronautical Systems Inc SkyGuardian remotely piloted aircraft arrives at RAF Fairford after completing the first transatlantic flight for such an aircraft, on July 11, 2018 in Gloucestershire, England. The 38ft long unmanned drone that has a 79ft wingspan, which took off from its base in North Dakota last night, will be on display at the Royal International Air Tattoo (RIAT) this weekend. Remotely piloted aircraft are increasingly important for both civilian and military applications, including the RAF, who are due to bring into service a variant of the SkyGuardian, which it is hoped will improve its long-range surveillance and precision strike capabilities. (Photo by Matt Cardy/Getty Images)
Sailors aboard the Arleigh Burke-class guided-missile destroyer USS Porter (DDG 78) heave mooring line as the ship departs Odessa, Ukraine, for the at-sea portion of exercise Sea Breeze 2018, July 11. (MC1 Ryan Riley/Released)
Air Force crew put a sticker on a C-130 at the Farnborough Airshow in Farnborough, England, Monday, July 16, 2018. (Matt Dunham/AP Photo)
A Marine with Special Purpose Marine Air-Ground Task Force-Crisis Response-Africa fast-ropes out of a U.S. Marine Corps MV-22 Osprey at Naval Station Rota, Spain, June 26, 2018. SPMAGTF-CR-AF deployed to conduct crisis-response and theater-security operations in Europe and North Africa. (Staff Sgt. Britni M. Garcia Green/Marines)
Marines assigned to Special Purpose Marine Air-Ground Task Force-Crisis Africa, Logistics Combat Element 18.2, raise a radio antenna, at Naval Air Station Sigonella, July 11, 2018. The Marines set up and tested an OE-254 radio antenna and practiced proper radio etiquette when using a PRC 152 radio over very high frequencies. The training was meant to ensure that all Marines were adequately cross-trained in basic communication skills and prepared to use the knowledge on the Battle Skills Test. (Cpl. Taylor W. Cooper/ Marines)
Marines unveil the marble monument honoring the 15 Marines and a U.S. Navy corpsman, who died in a 2017 plane crash near Mississippi Valley State University during ceremonies in Itta Bena, Miss., Saturday, July 14, 2018. More than 200 relatives and friends of the 16 people who died aboard the flight with the call sign Yanky 72, were joined by a couple hundred county residents and military supporters at the ceremonies. (AP Photo/Rogelio V. Solis)
Multinational Special Operations Forces (SOF) personnel provide cover for team members clearing a target house during Rim of the Pacific (RIMPAC) exercise, July 6. (U.S. Navy photo by CMC William Tonacchio/Navy)
Participants navigate an obstacle during the annual Marine Corps Marathon Run Amuck raceat Marine Corps Base Quantico, Virginia. The Run Amuck is the MCM's messiest mud and obstacle course consisting of a 4-mile trail with 21 challenges to include body weight exercises, rope climbs and mud pits. (Lance Cpl. Alexander Cockrell/Marine Corps)
Canadian soldiers with the Royal 22e RŽgiment exit an AAV-P7/A1 assault amphibious vehicle during an amphibious raid as part of Rim of the Pacific (RIMPAC) exercise on Marine Corps Base Camp Pendleton, California, July 13, 2018. This evolution provided an opportunity for participating nations to share best practices which included loading and unloading drills as well as squad attacks. (Cpl. Robert G. Gavaldon/Marines)
A soldier assigned to B Co., 2nd Battalion, 5th Cavalry Regiment, 1st Armored Brigade Combat Team, 1st Cavalry Division shoots targets with an M240B machine gun during small arms training at Smardan Training Area, Romania. (Sgt. 1st Class Robert Jordan/Army)
Marines assigned to Echo Company, 2nd Battalion, 25th Marine Regiment, participate in a mechanized company attack rehearsal at Shiroky Lan training center in Ukraine during exercise Sea Breeze 2018, July 13. Sea Breeze is a U.S. and Ukraine co-hosted multinational maritime exercise held in the Black Sea and is designed to enhance interoperability of participating nations and strengthen maritime security within the region. (MC1 Ryan Riley/Navy)