U.S. Marines from the 15th Marine Expeditionary Unit strategically position themselves Sept. 5, 2017, during an Alligator Dagger beach landing exercise in Djibouti. (Tech. Sgt. Joe Harwood/Air National Guard)
Hospital Corpsman 1st Class James Chidester, crewman gunner assigned to Coastal Riverine Squadron (CRS) 11, High Value Unit (HVU) Pacific Northwest, stands forward lookout onboard a 34-foot Sea Arc patrol boat Aug. 28, 2017, as it escorts the Seawolf-class fast-attack submarine USS Connecticut (SSN 22) during its transit home to Naval Base Kitsap-Bremerton, Wash. (Chief Boatswain's Mate Nelson Doromal/Navy)
Coast Guard Ensign James Garner, a port state control officer from Marine Safety Unit Texas City, blows bubbles to Zaiden Thomas, a dialysis patient, while Lt. Brad Bryan, a contingency planning officer at Sector San Diego, looks on at Texas Children’s Hospital, Houston, Sept. 4, 2017. Gardner and Bryan coordinated 33 rescues while operating as Coast Guard liaison officers during Hurricane Harvey. (Petty Officer 2nd Class Ashley J. Johnson/Coast Guard)
A soldier of the 1-124 Cavalry, Texas National Guard, gets his hair cut by a young woman who volunteered her services to the troops in Orange, Texas. Sep., 5, 2017. (Spc. Hayley Gardner/Army)
A KC-135 Stratotanker from the 127th Wing Air Refueling Group, Selfridge Air National Guard Base, Mich., escorts five of the U.S. Air Force Thunderbirds F-16s to a performance at the Selfridge Centennial Open House and Air Show on Aug. 17, 2017. (Master Sgt. David Kujawa/Air National Guard)
The X-37B Orbital Test Vehicle (OTV-5) is being staged Sept. 5, 2017, in preparation for its upcoming launch on Sept. 7. (Boeing)
The Blue Crew of the Ohio-class ballistic-missile submarine USS Alabama (SSBN 731) returns home to Naval Base Kitsap-Bangor, Wash., Sept. 5, 2017, following a routine strategic deterrent patrol. (MC1 Amanda R. Gray/Navy)
More than 390 paratroopers jumped out of C-17 Globemaster IIIs at Malemute Drop Zone at Joint Base Elmendorf-Richardson, Alaska, on Aug. 24, 2017. (Senior Airman Javier Alvarez/Air Force)
A four-ship formation of F-22 Raptors from the 94th Fighter Squadron and 1st Fighter Wing fly in formation over the Rocky Mountains in Colorado on Aug. 26, 2017. The aircraft were in transit back to Joint Base Langley-Eustis, Va., after participating in Red Flag 17-4 Aug. 26, 2017. (Staff Sgt. Carlin Leslie/Air Force)
A U.S. soldier with the 20th Engineer Battalion, 36th Engineer Brigade, waits to load supplies that will be distributed the towns effected Hurricane Harvey in a in a reconnaissance mission to asses the damage and combat the affects of the hurricane at an American Red Cross Distribution Center in Sugar Land, Texas, Sept. 3, 2017. (Spc. Hubert D. Delany III/Army)
Marine Sgt. Lucas Devalder, a Marine Corps Recruit Depot San Diego Band trumpet player assigned to Special Purpose Marine Air Ground Task Force Detroit, performs reveille at the Spirit of Detroit statue during Marine Week Detroit, Sept. 06, 2017. (Lance Cpl. Betzabeth Y. Galvan/Marine Corps)
A Coast Guard Station San Juan, Puerto Rico, safety supervisor ensures the boat cradle for the station's 45-foot Response Boat-Medium is properly in place before having his crews lock the cradle in place for preparation for Hurricane Irma, Sept. 5, 2017. (Petty Officer 2nd Class Jonathan Lally/Coast Guard)