A U.S. paratrooper from the 82nd Airborne Division from Fort Bragg in North Carolina takes part in a military exercise 'Saber Strike 2018' at the at the Gaiziunai Training Area some 130 kms (80 miles) west of the capital Vilnius, Lithuania, Saturday, June 9, 2018. A major U.S.-led military exercise with 18,000 soldiers from 19 primarily NATO countries is taking place in the alliance's eastern flank involving Poland and the three Baltic states of Estonia, Latvia, Lithuania. (AP Photo/Mindaugas Kulbis)
Sailors assigned to Arleigh Burke-class guided-missile destroyer USS Michael Murphy (DDG 112) wave to spectators of the Grand Floral Parade during Portland Rose Festival Fleet Week. (MC2 Ryan J. Batchelder/Navy)
Paratroopers from the 82nd Airborne Division from Fort Bragg, North Carolina, reach the ground after jumping from an Air Force C-17 during a Saber Strike 2018 exercises at the Gaiziunai Training Area in Lithuania. (Mindaugas Kulbis/AP)
Leona Hotko of Kingston, Pa., the niece of U.S. Navy Seaman 1st Class Edward Slapikas, a 26-year-old Newport Twp., Pa. native killed while serving aboard the USS Oklahoma in the attack on Pearl Harbor in Dec. 1941, receives the flag from his casket from U.S. Navy Lt. Commander Robert Magnotta of Wyoming, Pa. during a burial service at St. Mary's Cemetery in Nanticoke, Pa. on Saturday, June 9, 2018. Slapikas' remains were identified earlier this year and returned to Luzerne County for burial 77 years after his death. (Christopher Dolan/The Citizens' Voice via AP)
Navy MA1 Robert Linke, stationed at Naval Weapons Station Earle in Colts Neck, New Jersey, pauses at the casket of Seaman 1st Class Edward Slapikas, killed while serving aboard the USS Oklahoma in the attack on Pearl Harbor in December 1941. Slapikas' remains were identified earlier this year and returned to Luzerne County for burial 77 years after his death. (Christopher Dolan/The Citizens' Voice via AP)
Sgt. Wesley Davison, a field radio operator with the 31st Marine Expeditionary Unit, fireman carries a fellow NCO during a Force Fitness Instructor led High Intensity Tactical Training session at Camp Hansen, Okinawa, Japan. (Gunnery Sgt. T. T. Parish/Marine Corps)
Air Force Capt. Aaron Zendejas (bottom), stationed at Tinker Air Force Base, Okla., battles for ball possession against Navy defenseman PO3 Orlando Zapatagarcia (top), stationed at Naval Air Station Lemoore, Calif., during the 2018 Armed Forces MenÕs Soccer Championship at Fort Bragg. (MC2 John Benson/Navy)
Richard "Dick" Cole, the last surviving member of the famed World War II Doolittle Tokyo Raiders, is helped to a seat in a C-47 cargo plane at the Commemorative Air Force's San Marcos, Texas, facility as part of the organization's D-Day ceremonies, (William Luther/The San Antonio Express-News via AP)
U.S. Soldiers, assigned to 2nd Battalion, 70th Armored Regiment, 2nd Armored Brigade Combat Team, 1st Infantry Division, engage targets during the Strong Europe Tank Challenge at the 7th Army Training Command's Grafenwoehr Training Area, Germany, June 08, 2018. (Christoph Koppers/Army)
Paratroopers from the 82nd Airborne Division from Fort Bragg take part in a military exercise 'Saber Strike 2018' at the Gaiziunai Training Area some 130 kms (80 miles) west of the capital Vilnius, Lithuania, Saturday, June 9, 2018. A major U.S.-led military exercise with 18,000 soldiers from 19 primarily NATO countries is taking place in the alliance's eastern flank involving Poland and the three Baltic states of Estonia, Latvia, Lithuania.(AP Photo/Mindaugas Kulbis)
Soldiers and airmen participate in the 2018 New Jersey National Guard LGBT 5K Color Run on Joint Base McGuire-Dix-Lakehurst, New Jersey. (Master Sgt. Matt Hecht/Air National Guard)
A Navy ROTC midshipman patches a leaking pipe on the USS Buttercup Damage Control Wet Trainer during Sea Trials at Naval Station Newport, R.I. Sea Trials is a 10-day event during which midshipmen must perform a series of scenarios and properly demonstrate the skills they have developed throughout their training. (MC2 David R. Finley Jr./Navy)
German soldiers with the 3rd Panzer Battalion compete in the Tanker Olympics task during the Strong Europe Tank Challenge, June 8, 2018. (Gertrud Zach/Army)