Marines with Combined Anti-Armor Team, 3rd Battalion, 2nd Marine Regiment, conduct patrols during a patrol training exercise at Marine Corps Base Camp Lejeune, North Carolina, Nov. 16, 2015. The unit practiced patrolling techniques both on foot and mounted in Humvees in preparation for their upcoming deployment to Okinawa, Japan. - Marines with Combined Anti-Armor Team, 3rd Battalion, 2nd Marine Regiment, conduct patrols during a patrol training exercise at Marine Corps Base Camp Lejeune, North Carolina, Nov. 16, 2015. The unit practiced patrolling techniques both on foot and mounted in Humvees in preparation for their upcoming deployment to Okinawa, Japan.

Lance Cpl. Tyler, Shiels, right, conducts a search of Cpl. Kyle Lamprich during a security forces training exercise at Marine Corps Base Camp Lejeune, North Carolina, Sept. 30, 2015. More than 30 Marines with 2nd Low Altitude Air Defense Battalion participated in the week-long training, covering a full spectrum of scenarios they may encounter while deployed. Shiels and Lamprich are both low altitude air defense gunners with the squadron. - Lance Cpl. Tyler, Shiels, right, conducts a search of Cpl. Kyle Lamprich during a security forces training exercise at Marine Corps Base Camp Lejeune, North Carolina, Sept. 30, 2015. More than 30 Marines with 2nd Low Altitude Air Defense Battalion participated in the week-long training, covering a full spectrum of scenarios they may encounter while deployed. Shiels and Lamprich are both low altitude air defense gunners with the squadron.

Marines with Charlie Compnay, 1st Battalion, 8th Marine Regiment, conduct patrols through an urban training town during a counter improvised explosive device training exercise, aboard Marine Corps Base Camp Lejeune, North Carolina, April 22, 2015. The Marines were faced with the threat of simulated improvised explosive devices and mock-enemies throughout their patrols. They wore masks to protect their faces while using simulated rounds to suppress the enemies. (U.S. Marine Corps photo by Cpl. Kaitlyn Klein/Released) - Marines with Charlie Compnay, 1st Battalion, 8th Marine Regiment, conduct patrols through an urban training town during a counter improvised explosive device training exercise, aboard Marine Corps Base Camp Lejeune, North Carolina, April 22, 2015. The Marines were faced with the threat of simulated improvised explosive devices and mock-enemies throughout their patrols. They wore masks to protect their faces while using simulated rounds to suppress the enemies. (U.S. Marine Corps photo by Cpl. Kaitlyn Klein/Released)