2nd Battalion, 23rd Marine Regiment, 4th Marine Division, Marine Forces Reserve poses for a photo during a Veteran’s Day and Marine Forces Reserve Centennial celebration at Pasadena City Hall, Nov. 11, 2016. The Marine Corps Reserve marked 100 years of service on Aug. 29, 2016. For information on the history and heritage of the Marine Corps Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100. - 2nd Battalion, 23rd Marine Regiment, 4th Marine Division, Marine Forces Reserve poses for a photo during a Veteran’s Day and Marine Forces Reserve Centennial celebration at Pasadena City Hall, Nov. 11, 2016. The Marine Corps Reserve marked 100 years of service on Aug. 29, 2016. For information on the history and heritage of the Marine Corps Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100.

Colonel Derrick Heyl, commanding officer of Headquarters Battalion, Marine Forces Reserve, and Sgt. Maj. Michael J. Rowan, Sergeant Major of Headquarters Battalion, lead Marines from Marine Forces Reserve through the streets here and greet members of the community during a 3-mile motivational formation run, Nov. 9, 2016. Each year, the Marines celebrate the Corps’ birthday with a cake-cutting ceremony followed by a run. Since Nov. 10, 1775, the United States Marine Corps has earned the reputation as the world's most effective expeditionary fighting force – engaging in combat on battlefields across the globe. (U.S. Marine Corps photo by Sgt. Sara Graham) - Colonel Derrick Heyl, commanding officer of Headquarters Battalion, Marine Forces Reserve, and Sgt. Maj. Michael J. Rowan, Sergeant Major of Headquarters Battalion, lead Marines from Marine Forces Reserve through the streets here and greet members of the community during a 3-mile motivational formation run, Nov. 9, 2016. Each year, the Marines celebrate the Corps’ birthday with a cake-cutting ceremony followed by a run. Since Nov. 10, 1775, the United States Marine Corps has earned the reputation as the world's most effective expeditionary fighting force – engaging in combat on battlefields across the globe. (U.S. Marine Corps photo by Sgt. Sara Graham)

Marines from the San Francisco Bay Area hold the Marine Forces Reserve Centennial banner after the half-time show of the San Francisco 49ers’ game against the New Orleans Saints at Levi’s Stadium, Nov. 6, 2016. The National Football League recognized the Marine Corps Reserve’s Centennial during the half-time show as part of their “Salute to Service” campaign. Today, approximately 500 Reserve Marines are providing fully integrated operational support to Fleet and Combatant Commanders around the world. For more information on the history and heritage of Marine Forces Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100. (U.S. Marine Corps photo by Lance Cpl. Dallas Johnson) - Marines from the San Francisco Bay Area hold the Marine Forces Reserve Centennial banner after the half-time show of the San Francisco 49ers’ game against the New Orleans Saints at Levi’s Stadium, Nov. 6, 2016. The National Football League recognized the Marine Corps Reserve’s Centennial during the half-time show as part of their “Salute to Service” campaign. Today, approximately 500 Reserve Marines are providing fully integrated operational support to Fleet and Combatant Commanders around the world. For more information on the history and heritage of Marine Forces Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100. (U.S. Marine Corps photo by Lance Cpl. Dallas Johnson)

Marine Corps Band New Orleans, the Municipal Band of Humacao, and Puerto Rican Salsadero,Jerry Rivas, from El Gran Combo perform for the local residents and distinguished guest during the Marine Forces Reserve Centennial Celebration concert at the Centro De Bellas Artes in Humacao, Puerto Rico, Oct. 19, 2016. Marine Forces Reserve is commemorating 100 years of rich history, heritage, Espirit-de-corps across the U.S. This celebration recognizes the Reserve's essential role as a crisis response force and expeditionary force in readiness, constantly preparing to augment the active component. (U.S. Marine photo by Master Sgt. John A. Lee, II / Released) - Marine Corps Band New Orleans, the Municipal Band of Humacao, and Puerto Rican Salsadero,Jerry Rivas, from El Gran Combo perform for the local residents and distinguished guest during the Marine Forces Reserve Centennial Celebration concert at the Centro De Bellas Artes in Humacao, Puerto Rico, Oct. 19, 2016. Marine Forces Reserve is commemorating 100 years of rich history, heritage, Espirit-de-corps across the U.S. This celebration recognizes the Reserve's essential role as a crisis response force and expeditionary force in readiness, constantly preparing to augment the active component. (U.S. Marine photo by Master Sgt. John A. Lee, II / Released)

Lance Cpl. Santos Alfonso Nieves Baez, a landing support specialist with Detachment 1, Landing Support Company, Combat Logistics Regiment 45, 4th Marine Logistics Group, poses for a picture before the Marine Corps Reserve Centennial celebration concert begins at the Centro de Bellas Artes de Humacao, Oct. 20, 2016. Baez was joined by his unit, Marine Corps Band New Orleans and members of the Puerto Rican community to commemorate the Centennial of the Marine Corps Forces Reserve. (U.S. Marine Corps photo by Sgt. Sara Graham) - Lance Cpl. Santos Alfonso Nieves Baez, a landing support specialist with Detachment 1, Landing Support Company, Combat Logistics Regiment 45, 4th Marine Logistics Group, poses for a picture before the Marine Corps Reserve Centennial celebration concert begins at the Centro de Bellas Artes de Humacao, Oct. 20, 2016. Baez was joined by his unit, Marine Corps Band New Orleans and members of the Puerto Rican community to commemorate the Centennial of the Marine Corps Forces Reserve. (U.S. Marine Corps photo by Sgt. Sara Graham)

Chief Warrant Officer 4 Patrick M. Barnes, officer in charge, Admin Assist Unit, Marine Force Reserve, walks senior administrators through a practical application exercise that teaches process management by writing a procedure on how to make the perfect peanut butter sandwich during the 2016 Senior Administrator Symposium aboard Naval Air Station Joint Reserve Base Belle Chasse, La., Oct. 12-13, 2016. The symposium utilized instruction and practical application to help senior administrative personnel understand how and why the implementation of the Battalion Level Administrative Management initiative will improve Reserve units’ ability to pass MCAAT inspections. The initiative will mitigate the issues with the current system. (U.S. Marine Corps photo by Sgt. Sara Graham) - Chief Warrant Officer 4 Patrick M. Barnes, officer in charge, Admin Assist Unit, Marine Force Reserve, walks senior administrators through a practical application exercise that teaches process management by writing a procedure on how to make the perfect peanut butter sandwich during the 2016 Senior Administrator Symposium aboard Naval Air Station Joint Reserve Base Belle Chasse, La., Oct. 12-13, 2016. The symposium utilized instruction and practical application to help senior administrative personnel understand how and why the implementation of the Battalion Level Administrative Management initiative will improve Reserve units’ ability to pass MCAAT inspections. The initiative will mitigate the issues with the current system. (U.S. Marine Corps photo by Sgt. Sara Graham)

Marines and Sailors from 1st Battalion, 25th Marine Regiment, 4th Marine Division, gather at the Massachusetts Fallen Heroes Memorial during the unit’s 10-year reunion, here, Oct. 8, 2016. The service members gathered to reflect and recognize the accomplishments of their deployment to Fallujah, Iraq, as well as memorialize the lives of their fallen brothers. (U.S. Marine Corps photo by Cpl. Melissa Martens/ Released) - Marines and Sailors from 1st Battalion, 25th Marine Regiment, 4th Marine Division, gather at the Massachusetts Fallen Heroes Memorial during the unit’s 10-year reunion, here, Oct. 8, 2016. The service members gathered to reflect and recognize the accomplishments of their deployment to Fallujah, Iraq, as well as memorialize the lives of their fallen brothers. (U.S. Marine Corps photo by Cpl. Melissa Martens/ Released)

Marine Aircraft Group 49, 4th Marine Aircraft Wing, held a memorial ceremony Sept. 18, 2016, at Naval Air Station Joint Reserve Base New Orleans, La., to honor two fallen pilots from their unit. Maj. Erik A. Boyce and Maj. Jason Grogan were killed July 6, 2016, when the Bell 525 helicopter they were piloting crashed near Arlington, Texas. Grogan and Boyce were both assigned to Marine Light Attack Helicopter Squadron 773, Detachment A, at NAS JRB New Orleans at the time of their deaths. - Marine Aircraft Group 49, 4th Marine Aircraft Wing, held a memorial ceremony Sept. 18, 2016, at Naval Air Station Joint Reserve Base New Orleans, La., to honor two fallen pilots from their unit. Maj. Erik A. Boyce and Maj. Jason Grogan were killed July 6, 2016, when the Bell 525 helicopter they were piloting crashed near Arlington, Texas. Grogan and Boyce were both assigned to Marine Light Attack Helicopter Squadron 773, Detachment A, at NAS JRB New Orleans at the time of their deaths.