Senior Airman Adam Sanders, 386th Air Expeditionary Medical Group environmental program manager, conducts a water-sample test Oct. 3, 2018, at an undisclosed location in Southwest Asia. (U.S. Air Force photo by Staff Sgt. Christopher Stoltz)

STRAIT OF HORMUZ (Oct. 10, 2018) Arleigh Burke-class guided-missile destroyer USS The Sullivans (DDG 68) transits the Strait of Hormuz in formation with Wasp-class amphibious assault ship USS Essex (LHD 2) during a regularly scheduled deployment of Essex Amphibious Ready Group and 13th Marine Expeditionary Unit. USS Es ...More

The USMC F-35B conducted an air strike in support of ground clearance operations, and the strike was deemed successful by the ground force commander. (U.S. Marine Corps photo by Cpl. A. J. Van Fredenberg/Released)

“The Afghan army has taken severe casualties over the past year-and-a-half and they’ve stayed in the field fighting,” Defense Secretary James N. Mattis said. (U.S. Army photo by Staff Sgt. Neysa Canfield/TAAC-South Public Affairs)

A U.S. Marine with 3d Battalion, 7th Marine Regiment, attached to Special Purpose Marine Air-Ground Task Force, Crisis Response-Central Command, fires a FGM-148 Javelin, a shoulder-fired anti-tank missile, at his target during a live fire demonstration near At Tanf Garrison, Syria September 7, 2018. SPMAGTF-CR-CC Marin ...More

Kuwait City, Kuwait -- U.S. Army Gen. Joseph L. Votel, commander, U.S. Central Command, addresses senior defense leaders from nine countries throughout the region during a conference here Sept. 12. (U.S. Air Force photo by Tech Sgt. Dana Flamer/Released)

2nd Battalion, 12th Field Artillery Regiment, Alpha Battery, 2nd Platoon fires artillery in Afghanistan in support of Operation Freedom's Sentinel, July 23 2018. (U.S. Army photo by Sgt. Elliot Hughes)