Janna Schickel, wife of Staff Sgt. Matt Schickel, a platoon guide from Company E, 4th Tank Battalion, 4th Marine Division, welcomes her husband home Nov. 15, 2012, at Fort Knox, Ky., upon his return from a six-month deployment to Afghanistan. The Lanesville, Ind., native was greeted by friends and family upon his arrival at Fort Knox. (U.S. Marine Corps Photo by Cpl. Nana Dannsa-Appiah/Released) - Janna Schickel, wife of Staff Sgt. Matt Schickel, a platoon guide from Company E, 4th Tank Battalion, 4th Marine Division, welcomes her husband home Nov. 15, 2012, at Fort Knox, Ky., upon his return from a six-month deployment to Afghanistan. The Lanesville, Ind., native was greeted by friends and family upon his arrival at Fort Knox. (U.S. Marine Corps Photo by Cpl. Nana Dannsa-Appiah/Released)

Capt. Michael Roberson, a UH-1N Huey utility helicopter pilot with Marine Light Attack Helicopter Squadron 773, Marine Aircraft Group 49, 4th Marine Aircraft Wing, conducts a simulated close-air support mission at Fort Irwin, Calif., Oct. 17, 2012. Roberson is a Columbia, S.C., native and has deployed four times to Iraq for Operation Iraqi Freedom. (U.S. Marine Corps Photo by Cpl. Nana Dannsa-Appiah/Released) - Capt. Michael Roberson, a UH-1N Huey utility helicopter pilot with Marine Light Attack Helicopter Squadron 773, Marine Aircraft Group 49, 4th Marine Aircraft Wing, conducts a simulated close-air support mission at Fort Irwin, Calif., Oct. 17, 2012. Roberson is a Columbia, S.C., native and has deployed four times to Iraq for Operation Iraqi Freedom. (U.S. Marine Corps Photo by Cpl. Nana Dannsa-Appiah/Released)

Lance Cpl. Mitchell T. Spead Jr., VMR BC Det crew chief, holds one of his young daughters after arriving home from a three-month deployment to Al Udeid Air Base, Qatar. (US Navy Photos by Tammy Prine/Released) - Lance Cpl. Mitchell T. Spead Jr., VMR BC Det crew chief, holds one of his young daughters after arriving home from a three-month deployment to Al Udeid Air Base, Qatar. (US Navy Photos by Tammy Prine/Released)

Mike Parrell, a counter-improvised explosive device instructor with the Marine Corps Engineer Center, explains the various ways insurgents can hide IEDs to a group of Marines from Provisional Security Platoon, 1st Supply Battalion, 4th Marine Logistics Group during counter IED training Nov. 5. The PSP Marines are training for an upcoming deployment to Afghanistan. - Mike Parrell, a counter-improvised explosive device instructor with the Marine Corps Engineer Center, explains the various ways insurgents can hide IEDs to a group of Marines from Provisional Security Platoon, 1st Supply Battalion, 4th Marine Logistics Group during counter IED training Nov. 5. The PSP Marines are training for an upcoming deployment to Afghanistan.

Kelvin Garvanne, a government contracted instructor with Veteran Government services, speaks to Marines from 1st Platoon, Company L, 3rd Battalion, 25th Marine Regiment about the Afghan culture May 24, 2010 at the 25 Area Combat Town, Camp Pendleton, Ca. The Marines learned about the Afghan way of life and languages in preparation for their upcoming deployment to Afghanistan later this year. - Kelvin Garvanne, a government contracted instructor with Veteran Government services, speaks to Marines from 1st Platoon, Company L, 3rd Battalion, 25th Marine Regiment about the Afghan culture May 24, 2010 at the 25 Area Combat Town, Camp Pendleton, Ca. The Marines learned about the Afghan way of life and languages in preparation for their upcoming deployment to Afghanistan later this year.