Retired Marine Sgt. Maj. Martin Vasquez (left) and Maj. Gen. Daniel J. O’Donohue, commanding general of the 1st Marine Division, attach campaign streamers to the division colors during a Battle Colors Rededication Ceremony in honor of the division’s 75th anniversary, aboard Marine Corps Base Camp Pendleton, Calif., Feb. 4, 2016. Veteran and active duty Marines and Sailors who served in the division over the years participated in the ceremony, celebrating the oldest, largest, and most decorated division in the Marine Corps. (U.S. Marine Corps photo by Cpl. Will Perkins) - Retired Marine Sgt. Maj. Martin Vasquez (left) and Maj. Gen. Daniel J. O’Donohue, commanding general of the 1st Marine Division, attach campaign streamers to the division colors during a Battle Colors Rededication Ceremony in honor of the division’s 75th anniversary, aboard Marine Corps Base Camp Pendleton, Calif., Feb. 4, 2016. Veteran and active duty Marines and Sailors who served in the division over the years participated in the ceremony, celebrating the oldest, largest, and most decorated division in the Marine Corps. (U.S. Marine Corps photo by Cpl. Will Perkins)

MARINE CORPS BASE CAMP PENDLETON, Calif. – Marines with Company A., 3rd Assault Amphibious Battalion conduct maintenance on an Assault Amphibious Vehicle engine at Camp Pendleton, Feb. 2, 2016. Marines from 3rd AAB supported 2nd Battalion, 4th Marine Division and 1st Bn, 1st Mar. Div. infantry battalions as they conducted raid drills for Expeditionary Operations Training Group and their Marine Corps Combat Readiness Evaluation. “We are being mechanics, changing engines, changing transmissions and troubleshooting issues so we can get the infantry units back in the fight with the full power of their AAVs,” said Staff Sgt. Nicholas R. Faltynski, recovery chief for Company A., 3rd AAB. (U.S. Marine Corps Photo by Lance Cpl. Justin E. Bowles) - MARINE CORPS BASE CAMP PENDLETON, Calif. – Marines with Company A., 3rd Assault Amphibious Battalion conduct maintenance on an Assault Amphibious Vehicle engine at Camp Pendleton, Feb. 2, 2016. Marines from 3rd AAB supported 2nd Battalion, 4th Marine Division and 1st Bn, 1st Mar. Div. infantry battalions as they conducted raid drills for Expeditionary Operations Training Group and their Marine Corps Combat Readiness Evaluation. “We are being mechanics, changing engines, changing transmissions and troubleshooting issues so we can get the infantry units back in the fight with the full power of their AAVs,” said Staff Sgt. Nicholas R. Faltynski, recovery chief for Company A., 3rd AAB. (U.S. Marine Corps Photo by Lance Cpl. Justin E. Bowles)

MARINE CORPS BASE CAMP PENDLETON, Calif. – Marines shield themselves from a detonated explosive charge during an urban leaders course, Jan. 29, 2016. During the course, Marines learned four different types of charges used to make a safe entrance into an objective. This type of training allows Marines to practice for possible scenarios when they are deployed to combat zones anywhere on the globe. An instructor with 1st Combat Engineer Battalion, 1st Marine Division, taught this portion of the course to infantrymen of 1st MarDiv. (U.S. Marine Corps photo by Sgt. Emmanuel Ramos) - MARINE CORPS BASE CAMP PENDLETON, Calif. – Marines shield themselves from a detonated explosive charge during an urban leaders course, Jan. 29, 2016. During the course, Marines learned four different types of charges used to make a safe entrance into an objective. This type of training allows Marines to practice for possible scenarios when they are deployed to combat zones anywhere on the globe. An instructor with 1st Combat Engineer Battalion, 1st Marine Division, taught this portion of the course to infantrymen of 1st MarDiv. (U.S. Marine Corps photo by Sgt. Emmanuel Ramos)

Sgt. Tyler Felts, an LAV crewman, sights in on a target during a live-fire gunnery qualification test with an M240B machine gun at Marine Corps Air Ground Combat Center Twentynine Palms, Jan. 22, 2016. Live-fire tests like these allow the Marines of 1st Light Armored Reconnaissance Battalion, 1st Marine Division, I Marine Expeditionary Force to train for how they will execute their mission when they are deployed in a combat zone. (U.S. Marine Corps photo by Pvt. Robert Bliss) - Sgt. Tyler Felts, an LAV crewman, sights in on a target during a live-fire gunnery qualification test with an M240B machine gun at Marine Corps Air Ground Combat Center Twentynine Palms, Jan. 22, 2016. Live-fire tests like these allow the Marines of 1st Light Armored Reconnaissance Battalion, 1st Marine Division, I Marine Expeditionary Force to train for how they will execute their mission when they are deployed in a combat zone. (U.S. Marine Corps photo by Pvt. Robert Bliss)

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.

Staff Sgt. John R. Purcell, administrative course instructor and manpower operations chief at 1st MarDiv (Fwd), gives a class on absence-without-leave reporting procedures during an administration course July 16, 2012. Nineteen members of the ANSF completed a two-week administration course that taught the students the basic functions of a military administration and personnel section. - Staff Sgt. John R. Purcell, administrative course instructor and manpower operations chief at 1st MarDiv (Fwd), gives a class on absence-without-leave reporting procedures during an administration course July 16, 2012. Nineteen members of the ANSF completed a two-week administration course that taught the students the basic functions of a military administration and personnel section.

Lance Cpl. Kyle Yudin, a machine gunner with 2nd Battalion, 5th Marine Regiment, patrols through the town of Zamindawar, a known insurgent stronghold, June 1, 2012. Marines fought through hostile enemy contact and temperatures reaching 120 degrees Fahrenheit during the operation. - Lance Cpl. Kyle Yudin, a machine gunner with 2nd Battalion, 5th Marine Regiment, patrols through the town of Zamindawar, a known insurgent stronghold, June 1, 2012. Marines fought through hostile enemy contact and temperatures reaching 120 degrees Fahrenheit during the operation.

U.S. Marine Corps Maj. Gen. David H. Berger, right, commanding general of Task Force Leatherneck (TFL) and Sgt. Maj. Terry L. Jones, TFL Sergeant Major, salute the American Flag during an evening colors ceremony on Camp Leatherneck, Helmand province Afghanistan May 28, 2012. Berger held the ceremony as a Memorial Day Commemoration in remembrance for those who have died in our nation's service. (U.S. Marine Corps Photo by Sgt. Sheila M. Brooks)::r::::n::::r::::n::::r::::n:: - U.S. Marine Corps Maj. Gen. David H. Berger, right, commanding general of Task Force Leatherneck (TFL) and Sgt. Maj. Terry L. Jones, TFL Sergeant Major, salute the American Flag during an evening colors ceremony on Camp Leatherneck, Helmand province Afghanistan May 28, 2012. Berger held the ceremony as a Memorial Day Commemoration in remembrance for those who have died in our nation's service. (U.S. Marine Corps Photo by Sgt. Sheila M. Brooks)::r::::n::::r::::n::::r::::n::