U.S. Marine Corps Sgt. Maj. Ronald L. Green talks with Lance Cpl. Keshawn Keithmincy with Special Purpose Marine Air-Ground Task Force-Crisis Response-Central Command, at an undisclosed location in Southwest Asia Dec. 22, 2015. (Clarence Leake/U.S. Marine Corps)

The Commandant of the Marine Corps, Gen. Robert B. Neller, speaks to Marines and sailors with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa at Moron Air Base, Spain, Dec. 20, 2015. (Vitaliy Rusavskiy/U.S. Marine Corps)

The Commandant of the Marine Corps, Gen. Robert B. Neller, speaks to Marines and sailors with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa at Moron Air Base, Spain, Dec. 20, 2015. (Vitaliy Rusavskiy/U.S. Marine Corps)

U.S. Marine Corps Maj. Gen. Carl Mundy III, commander of Task Force 51, speaks to Marines with the 26th Marine Expeditionary Unit and sailors assigned to the amphibious assault ship USS Kearsarge, aboard the Kearsarge, in the Persian Gulf, Dec. 19, 2015. (Andre Dakis/U.S. Marine Corps)

U.S. Marines, sailors, and soldiers celebrate an early Christmas at Mihail Kogalniceanu Air Base, Romania, Dec. 19, 2015. (Melanye Martinez/U.S. Marine Corps)

U.S. Marines, sailors and airmen gather at the Moron Air Base movie theater for a special premier of the latest Star Wars movie, Dec. 19, 2015. (Vitaliy Rusavskiy/U.S. Marine Corps)

Guests attending the City of New Orleans/Zulu Toys for Tots Distribution receive raffle tickets at City Hall, New Orleans, La., Dec. 19, 2015. (Ricardo Davila/U.S. Marine Corps)

Cpl. Zachariah Mercer hands a present to a child Dec. 19, 2015, at the Kin Town Social Welfare Center, Okinawa, Japan. (Isaac Ibarra/U.S. Marine Corps)

U.S. Marine Corps Maj. Alfredo Romero, left, operations officer with Combat Logistics Battalion 26, 26th Marine Expeditionary Unit, serves Lance Cpl. Juan Santana, a rifleman with Company G, Battalion Landing Team 2/6, 26th MEU, a Christmas meal aboard the amphibious assault ship USS Kearsarge, in the Persian Gulf, Dec. 22, 2015. (Andre Dakis/U.S. Marine Corps)

U.S. Navy Culinary Specialist 2nd Class Marvin Samson, with the Kearsarge Amphibious Ready Group, prepares pies for the Christmas meal aboard the amphibious assault ship USS Kearsarge, in the Persian Gulf, Dec. 22, 2015. (Andre Dakis/U.S. Marine Corps)