Lance Cpl. Travis DeShazo, a rifleman assigned to Company E, 2nd Battalion, 4th Marine Regiment, 1st Marine Division, prepares a computer to control a Raven unmanned aerial system to establish the location of notional enemy units aboard Marine Corps Air Ground Combat Center, California, Dec. 10, 2015. The Marines employed the Raven UAS as part of Steel Knight to gain a better understanding of it and develop a higher proficiency of what it takes to operate as a more effective as the ground combat element of the I Marine Expeditionary Force. - Lance Cpl. Travis DeShazo, a rifleman assigned to Company E, 2nd Battalion, 4th Marine Regiment, 1st Marine Division, prepares a computer to control a Raven unmanned aerial system to establish the location of notional enemy units aboard Marine Corps Air Ground Combat Center, California, Dec. 10, 2015. The Marines employed the Raven UAS as part of Steel Knight to gain a better understanding of it and develop a higher proficiency of what it takes to operate as a more effective as the ground combat element of the I Marine Expeditionary Force.

Marines with Company A, 1st Reconnaissance Battalion, 1st Marine Division, survey a named area of interest during reconnaissance and surveillance training, Nov. 19-21, 2015, aboard Marine Corps Training Area Bellows, Hawaii. The Marines conducted insertion, infiltration, execution, exfiltration, and extraction in terrain unfamiliar to what is usually found at their home base in California. The Hawaiian terrain ranged from beach shores, to dense jungle and open valleys during pouring rains (U.S. Marine Corps photo by Sgt. Tony Simmons) - Marines with Company A, 1st Reconnaissance Battalion, 1st Marine Division, survey a named area of interest during reconnaissance and surveillance training, Nov. 19-21, 2015, aboard Marine Corps Training Area Bellows, Hawaii. The Marines conducted insertion, infiltration, execution, exfiltration, and extraction in terrain unfamiliar to what is usually found at their home base in California. The Hawaiian terrain ranged from beach shores, to dense jungle and open valleys during pouring rains (U.S. Marine Corps photo by Sgt. Tony Simmons)

Marines with Battery I, 3rd Battalion, 11th Marine Regiment, 1st Marine Division, fire an M777 Howitzer¬ during the opening day of live-fire operations for Steel Knight at Marine Corps Air Ground Combat Center Twentynine Palms, California, on Dec. 10, 2015. The tough, realistic training is intended to develop combat skills necessary to operate as the ground combat element of the I Marine Expeditionary Force. - Marines with Battery I, 3rd Battalion, 11th Marine Regiment, 1st Marine Division, fire an M777 Howitzer¬ during the opening day of live-fire operations for Steel Knight at Marine Corps Air Ground Combat Center Twentynine Palms, California, on Dec. 10, 2015. The tough, realistic training is intended to develop combat skills necessary to operate as the ground combat element of the I Marine Expeditionary Force.

U.S. Marine Cpl. Christian Reyes, a shoulder-launched multipurpose assault weapon gunner with 1st Battalion, 7th Marine Regiment, Special Purpose Marine Air Ground Task Force-Crisis Response-Central Command, scans the surrounding environment for possible threats during a mission readiness exercise at an undisclosed location in Southwest Asia, Nov. 24, 2015. The Marines conducted the exercise to prepare for potential missions in the Central Command area of responsibility. (U.S. Marine Corps Photo by Sgt. Owen Kimbrel / Released) - U.S. Marine Cpl. Christian Reyes, a shoulder-launched multipurpose assault weapon gunner with 1st Battalion, 7th Marine Regiment, Special Purpose Marine Air Ground Task Force-Crisis Response-Central Command, scans the surrounding environment for possible threats during a mission readiness exercise at an undisclosed location in Southwest Asia, Nov. 24, 2015. The Marines conducted the exercise to prepare for potential missions in the Central Command area of responsibility. (U.S. Marine Corps Photo by Sgt. Owen Kimbrel / Released)

Marines with 1st Marine Division take part in a Combined Armed Staff Trainer exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 17, 2015, in preparation for Exercise Steel Knight 2016. The CAST exercise was a division-level evolution, which allowed Marines to maintain designated skillsets in support of a simulated, large-scale operation.(U.S. Marine Corps photo by Cpl. Demetrius Morgan/RELEASED) - Marines with 1st Marine Division take part in a Combined Armed Staff Trainer exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 17, 2015, in preparation for Exercise Steel Knight 2016. The CAST exercise was a division-level evolution, which allowed Marines to maintain designated skillsets in support of a simulated, large-scale operation.(U.S. Marine Corps photo by Cpl. Demetrius Morgan/RELEASED)

Marines and Sailors assigned to Company A, 3rd Assault Amphibian Battalion, 1st Marine Division, celebrate the Marine Corps’ 240th birthday aboard Yuma Proving Grounds, Ariz., Nov. 10, 2015. The Marines and Sailors celebrated the birthday as a culminating event to the 18-day field operation. - Marines and Sailors assigned to Company A, 3rd Assault Amphibian Battalion, 1st Marine Division, celebrate the Marine Corps’ 240th birthday aboard Yuma Proving Grounds, Ariz., Nov. 10, 2015. The Marines and Sailors celebrated the birthday as a culminating event to the 18-day field operation.

The 1st Marine Division Band plays music before the start of 3rd Battalion, 4th Marines, 7th Marine Regiment’s reactivation ceremony at Lance Cpl. Torrey L. Gray Field, Sept. 17, 2015. - The 1st Marine Division Band plays music before the start of 3rd Battalion, 4th Marines, 7th Marine Regiment’s reactivation ceremony at Lance Cpl. Torrey L. Gray Field, Sept. 17, 2015.

Marines with 3rd Light Armored Reconnaissance Battalion, 1st Marine Division, maneuver their light armored vehicles off Landing Craft Air Cushions (LCACs) from the Navy’s Assault Craft Unit 5, during an amphibious raid demonstration in conjunction with a visit from the secretary of defense, aboard Marine Corps Base Camp Pendleton, Calif., Aug. 27, 2015. The LCACs transported the LAVs and Marines from the USS New Orleans (LDP 18) while Marines from Company A, 1st Battalion, 1st Marine Regiment, 1st Mar. Div. used amphibious assault vehicles with 3rd Assault Amphibian Battalion, 1st Mar. Div. to assault their objective. - Marines with 3rd Light Armored Reconnaissance Battalion, 1st Marine Division, maneuver their light armored vehicles off Landing Craft Air Cushions (LCACs) from the Navy’s Assault Craft Unit 5, during an amphibious raid demonstration in conjunction with a visit from the secretary of defense, aboard Marine Corps Base Camp Pendleton, Calif., Aug. 27, 2015. The LCACs transported the LAVs and Marines from the USS New Orleans (LDP 18) while Marines from Company A, 1st Battalion, 1st Marine Regiment, 1st Mar. Div. used amphibious assault vehicles with 3rd Assault Amphibian Battalion, 1st Mar. Div. to assault their objective.

Marines with 3rd Battalion, 5th Marine Regiment, 1st Marine Division, establish security during a helicopter raid, as part of the Marine Corps Combat Readiness Evaluation (MCCRE), aboard Marine Corps Base Camp Pendleton, Calif., Aug. 4, 2015. The MCCRE is used evaluate the operational readiness of a designated unit. - Marines with 3rd Battalion, 5th Marine Regiment, 1st Marine Division, establish security during a helicopter raid, as part of the Marine Corps Combat Readiness Evaluation (MCCRE), aboard Marine Corps Base Camp Pendleton, Calif., Aug. 4, 2015. The MCCRE is used evaluate the operational readiness of a designated unit.

Corporal Russell Robertson, a squad leader assigned to Company I, 3rd Battalion, 5th Marine Regiment, extends the antenna for his radio operator during the 1st Marine Division Super Squad Competition aboard Marine Corps Base Camp Pendleton, Calif., June 30, 2015. The Marines and Sailors tested their abilities to conduct infantry operations for the title of super squad. - Corporal Russell Robertson, a squad leader assigned to Company I, 3rd Battalion, 5th Marine Regiment, extends the antenna for his radio operator during the 1st Marine Division Super Squad Competition aboard Marine Corps Base Camp Pendleton, Calif., June 30, 2015. The Marines and Sailors tested their abilities to conduct infantry operations for the title of super squad.