U.S. Marine Corps Staff Sgt. John L. Walker, a drill instructor from Marine Corps Recruit Depot San Diego, leads out the Team West players before the Semper Fidelis All-American Bowl Jan. 4, 2015, at The StubHub Center in Carson, Calif. (Tyler J. Bolken/U.S. Marine Corp)

Marine recruit Poolees prepare to swear in during a ceremony at the Stubhub Center before the 2015 Semper Fidelis All-American Bowl on Jan. 4, 2015 in Carson, Calif. (Damany Coleman/U.S. Marine Corps)

Several KC-130J Super Hercules aerial refueler aircraft with Marine Aerial Refueler Transport Squadron 252 sit on the flight line at Marine Corps Air Station Cherry Point, N.C., Jan. 5, 2015, as the Air Traffic Control Tower rises in the background. (Timothy Parish/U.S. Marine Corps)

U.S. Marines with the Force Reconnaissance detachment, 11th Marine Expeditionary Unit, conduct buddy checks as a part of pier-search dive training Jan. 3, 2014. The 11th MEU is deployed with Makin Island Amphibious Ready Group as a theater reserve and crisis response force throughout U.S. Central Command and 5th Fleet area of responsibility. (Evan White/U.S. Marine Corps)

U.S. Marines from the 11th Marine Expeditionary Unit, assigned to the combat cargo division of the amphibious assault ship USS Makin Island, secure a pallet during an underway replenishment aboard the Makin Island, Jan. 6, 2014. (Evan White/U.S. Marine Corps)

A Marine sights in with an M110 semi-automatic sniper system, acquainting himself with the unloaded weapon during marksmanship/observer training on Range 22 on Jan. 6, 2015, on Camp Bulter, Okinawa. (Matthew Callahan/U.S. Marine Corps)

Arabic-speaking role-players simulate a riot outside the gates of a combat simulation town at Camp Pendleton, Calif., Jan. 7, 2015. The role-players dressed for the part and spoke the language to create a cultural and language barrier for Marines of 3rd Battalion, 7th Marine Regiment, 1st Marine Division during a training exercise. (Morgan Frazer/U.S. Marine Corps)

Lt. Col. Brent Weathers, the station director of operations slated to retire after 20 years of service, conducted his final flight today aboard Marine Corps Air Station, Yuma, Ariz. (Casey Scarpulla/U.S. Marine Corps)

Lance Cpl. Felix C. Jovel, right, fires an M240B medium machine gun from a 7-ton truck as Cpl. Anthony Durham, left, observes during training Jan. 7, 2015, at Range 9 in the Central Training Area on Okinawa. (Drew Tech/U.S. Marine Corps)

Cpl. Gregory D. Boyd, a combat videographer assigned to Marine Wing Headquarters Squadron 2, moves to a safe distance from a CH-53E Super Stallion during an external lift training exercise on Camp Lejeune, N.C., Jan. 7, 2015. (Jodson Graves/U.S. Marine Corps)