Members of the 1804 Concord Independent Battery render honors as the future Arleigh Burke-class guided-missile destroyer USS Thomas Hudner (DDG 116) arrives in Boston on Nov. 26, 2018. The warship, named for the Navy pilot from Massachusetts who received a Medal of Honor for his Korean War actions, was commissioned Dec. 1. (MC1 Joshua Hammond/Navy)
U.S. Air Force members from the 96th Expeditionary Aircraft Maintenance Unit shake a tow bar to maneuver it into place on a B-52 Stratofortress bomber during exercise Lightning Focus at Royal Australian Air Force Base Darwin, Australia, Nov. 29, 2018. (Senior Airman Christopher Quail/Air Force)
Ship's Serviceman 3rd Class Pedro Solis-Perez gives a haircut to Chief of Naval Operations Adm. John Richardson aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75) on Nov. 23, 2018, in the Mediterranean Sea. Richardson and Master Chief Petty Officer of the Navy Russell Smith visited the ship to collect feedback and express their gratitude for the crew’s warfighting readiness. (MC1 Sarah Villegas/Navy)
Army indirect fire infantrymen operate the M121 120 mm mortar system during live-fire training at Joint Base Elmendorf-Richardson, Alaska, Nov. 19, 2018. (Alejandro Peña/Air Force)
Staff Sgt. Immanuel Garcia, a metal worker with Special Purpose Marine Air-Ground Task Force – Southern Command, welds a support beam to support a pipe the Marines replaced on Sep 19, 2018, in Trujillo, Honduras. (Sgt. Justin M. Smith/Marine Corps)
A crew chief marshals an Air Force C-17 Globemaster III on Ramstein Air Base, Germany Oct. 31, 2018. (Senior Airman Devin M. Rumbaugh/Air Force)
Marines and sailors with Kilo Company, Battalion Landing Team 3rd Battalion, 5th Marine Regiment, 11th Marine Expeditionary Unit, conduct a live-fire range during a pre-deployment training exercise at MAGTF Training Command/Marine Corps Air Ground Combat Center at Twentynine Palms, Calif., Nov. 11, 2018. (Lance Cpl. Dalton S. Swanbeck/Marine Corps)
The Arleigh Burke-class guided missile destroyer USS John S. McCain (DDG 56) is pulled towards a pier Nov. 27, 2018, after departing from a dry dock at Fleet Activities Yokosuka, Japan. (MC2 Jeremy Graham/Navy)
Army Spc. Christopher Hernandez, foreground, assigned to the 65th Military Police Company, conducts non-lethal riot control training in Davis-Monthan Air Force Base, Ariz., Nov. 24, 2018. (Spc. Brandon Best/Army)
Capt. De Lao guards the corner of a hallway in a mock chemical environment during subterranean environment training at the platoon level at the Combined Arms Collective Training Facility at Fort Drum, N.Y., Nov 15, 2018. (Staff Sgt. James Avery/Army)
An F-15C Eagle departs for exercise Keen Sword 2019 at Kadena Air Base, Japan, Nov. 1, 2018. (Staff Sgt. Omari Bernard/Air Force)