U.S. Army Soldiers with Alpha Company, 2-501st Parachute Infantry Regiment, fire an 81mm mortar in support of the Afghan National Army during operation Maiwand 10 in Helmand Province, Afghanistan, Dec. 26, 2017. The Soldiers fired multiple illumination rounds in order to light a nearby area of Marjah where the ANA experienced a nighttime ambush. (U.S. Marine Corps photo by Sgt. Justin T. Updegraff) - U.S. Army Soldiers with Alpha Company, 2-501st Parachute Infantry Regiment, fire an 81mm mortar in support of the Afghan National Army during operation Maiwand 10 in Helmand Province, Afghanistan, Dec. 26, 2017. The Soldiers fired multiple illumination rounds in order to light a nearby area of Marjah where the ANA experienced a nighttime ambush. (U.S. Marine Corps photo by Sgt. Justin T. Updegraff)

An Afghan Air Force tactical air controller scouts notional targets for MD-530 helicopters during an ATAC training exercise at Camp Shorabak, Afghanistan, Dec. 18, 2017. Several ATACs worked to enhance their aircraft directing skills with assistance from coalition advisors in preparation for future operations in Helmand province. Tactical air controllers often travel with ground force elements on the battlefield to direct airstrikes onto Taliban targets, allowing for better maneuver and safety of Afghan forces. (U.S. Marine Corps photo by Sgt. Lucas Hopkins) - An Afghan Air Force tactical air controller scouts notional targets for MD-530 helicopters during an ATAC training exercise at Camp Shorabak, Afghanistan, Dec. 18, 2017. Several ATACs worked to enhance their aircraft directing skills with assistance from coalition advisors in preparation for future operations in Helmand province. Tactical air controllers often travel with ground force elements on the battlefield to direct airstrikes onto Taliban targets, allowing for better maneuver and safety of Afghan forces. (U.S. Marine Corps photo by Sgt. Lucas Hopkins)

Afghan National Army Command Sgt. Maj. Roshan, right, the senior enlisted advisor to the President of Afghanistan, offers remarks to U.S. and Afghan military personnel during a warfighter forum at Resolute Support Headquarters in Kabul, Afghanistan, Nov. 15, 2017. The warfighter forum was a two-day event bringing together senior enlisted leaders from the Afghan National Defense and Security Forces and their U.S. counterparts to discuss solutions to challenges such as accountability, mortuary affairs and female integration in order to further professionalize the Afghan forces. (U.S. Marine Corps photo by Sgt. Lucas Hopkins) - Afghan National Army Command Sgt. Maj. Roshan, right, the senior enlisted advisor to the President of Afghanistan, offers remarks to U.S. and Afghan military personnel during a warfighter forum at Resolute Support Headquarters in Kabul, Afghanistan, Nov. 15, 2017. The warfighter forum was a two-day event bringing together senior enlisted leaders from the Afghan National Defense and Security Forces and their U.S. counterparts to discuss solutions to challenges such as accountability, mortuary affairs and female integration in order to further professionalize the Afghan forces. (U.S. Marine Corps photo by Sgt. Lucas Hopkins)