Navy basic underwater demolition/SEAL students conduct inflatable boat small surf passage training at the Naval Special Warfare Basic Training Command in Coronado, Calif., May 22, 2017. Navy photo by Petty Officer 1st Class Lawrence Davis
An F-15E Strike Eagle releases flares as part of a combined arms demonstration during the Wings Over Wayne Air Show at Seymour Johnson Air Force Base, N.C., May 21, 2017. Air Force photo by Staff Sgt. Brittain Crolley
Army Sgt. Matthew Councill shouts commands to his team of Canadian soldiers during a U.S.-Canadian demonstration of a section attack for Ukrainian noncommissioned officers near Zhytomyr, Ukraine, May 22, 2017. Army photo by Sgt. Anthony Jones
Navy Petty Officer 3rd Class Alexander Zebro pours cement for the bond beam of a health clinic that Naval Mobile Construction Battalion 1 is building in Kosrae, Micronesia, May 16, 2017. Navy photo by Petty Officer Matthew Konopka
A paratrooper participates in the Best Squad Competition as part of All American Week at Fort Bragg, N.C., May 23, 2017. The week celebrates the 82nd Airborne Division and its soldiers and veterans. Army photo by Sgt. Jesse Leger
Sailors conduct their biannual physical readiness test on stationary bikes in the hangar bay of the aircraft carrier USS Theodore Roosevelt as the ship is moored pier-side in San Diego, May 22, 2017. Navy photo by Seaman Bill M. Sanders
Marine Corps musicians perform for students at Stuttgart High School in Boeblingen, Germany, May 22, 2017, as part of a tour celebrating the relationship between the Marine Corps and Germany. Marine Corps photo by Cpl. Dana Beesley