1st Battalion, 1st Marine Regiment infantrymen tactically move from building to building in a simulated combat zone during Exercise Steel Knight 2016 at Marine Corps Base Camp Pendleton, Calif., Dec. 4, 2015. 1st Marine Division has conducted Steel Knight for the past three years, making this the fourth iteration of the exercise. Steel Knight will test I Marine Expeditionary Force’s amphibious capabilities through realistic, scenario-driven training. - 1st Battalion, 1st Marine Regiment infantrymen tactically move from building to building in a simulated combat zone during Exercise Steel Knight 2016 at Marine Corps Base Camp Pendleton, Calif., Dec. 4, 2015. 1st Marine Division has conducted Steel Knight for the past three years, making this the fourth iteration of the exercise. Steel Knight will test I Marine Expeditionary Force’s amphibious capabilities through realistic, scenario-driven training.

Marines with 1st Reconnaissance Battalion, 1st Marine Division conduct free fall jump training from a C-130 Hercules with 3rd Marine Aircraft Wing aboard Marine Corps Base Camp Pendleton, Calif., Oct. 16, 2015. 1st Recon conducted parachute operations in preparation for future deployments. - Marines with 1st Reconnaissance Battalion, 1st Marine Division conduct free fall jump training from a C-130 Hercules with 3rd Marine Aircraft Wing aboard Marine Corps Base Camp Pendleton, Calif., Oct. 16, 2015. 1st Recon conducted parachute operations in preparation for future deployments.

Marines from Company A, 1st Reconnaissance Battalion, 1st Marine Divison, I Marine Expeditionary Force, are suspended from a UH-1Y Huey helicopter during an exercise on Marine Corps Base Camp Pendleton, Calif., Aug. 18, 2015. Utilizing both fast-roping and Special Patrol Insertion and Extraction rigging methods, the purpose of the training exercise was to integrate operational coordination between the I MEF Ground Combat Element and Air Combat Element. - Marines from Company A, 1st Reconnaissance Battalion, 1st Marine Divison, I Marine Expeditionary Force, are suspended from a UH-1Y Huey helicopter during an exercise on Marine Corps Base Camp Pendleton, Calif., Aug. 18, 2015. Utilizing both fast-roping and Special Patrol Insertion and Extraction rigging methods, the purpose of the training exercise was to integrate operational coordination between the I MEF Ground Combat Element and Air Combat Element.

3rd Battalion, 4th Marines Logo - 3rd Battalion, 4th Marines Logo

Master Sgt. Alex Ng, the field artillery chief assigned to Battery Q, 5th Battalion, 11th Marine Regiment, 1st Marine Division, explains the abilities of the M142 High-Mobility Artillery Rocket System to Maj. Rafael Pires Ferreira, a battery commander with Brazil’s Corpo de Fuzileios, aboard Marine Corps Base Camp Pendleton, Calif., Aug. 5, 2015. Two Brazilian military officers participated in a Subject Matter Expert Exchange with the Marines and Sailors of 11th Marines to compare standard operating procedures and to share experiences and ideas. - Master Sgt. Alex Ng, the field artillery chief assigned to Battery Q, 5th Battalion, 11th Marine Regiment, 1st Marine Division, explains the abilities of the M142 High-Mobility Artillery Rocket System to Maj. Rafael Pires Ferreira, a battery commander with Brazil’s Corpo de Fuzileios, aboard Marine Corps Base Camp Pendleton, Calif., Aug. 5, 2015. Two Brazilian military officers participated in a Subject Matter Expert Exchange with the Marines and Sailors of 11th Marines to compare standard operating procedures and to share experiences and ideas.

Lance Cpl. Steven Hoggand, a machine gunner and section leader with 1st Platoon, Company C, 1st Battalion, 7th Marines, directs his Marines’ fire while suppressing an enemy position during platoon attack drills, July 24, aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif. Training began for the Marines of Company C with a combined arms fire and maneuver exercise as part of their Integrated Training Exercise in preparation for their upcoming deployment with Special Purpose Marine Air Ground Task Force Crisis Response Central Command 16.1 scheduled to depart later this year. - Lance Cpl. Steven Hoggand, a machine gunner and section leader with 1st Platoon, Company C, 1st Battalion, 7th Marines, directs his Marines’ fire while suppressing an enemy position during platoon attack drills, July 24, aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif. Training began for the Marines of Company C with a combined arms fire and maneuver exercise as part of their Integrated Training Exercise in preparation for their upcoming deployment with Special Purpose Marine Air Ground Task Force Crisis Response Central Command 16.1 scheduled to depart later this year.