Lt. Col. Michael Cable, commanding officer, Headquarters Battalion, addresses the crowd during the retirement ceremony for Sgt. Maj. Avery Crespinformer Headquarters Battalion sergeant major, at Lance Cpl. Torrey L. Gray field aboard the Combat Center, September 29, 2017. Crespin served in more than five units and Military Occupational Specialties in his 22 years of active duty service. (U.S. Marine Corps photo by Lance Cpl. Isaac Cantrell) - Lt. Col. Michael Cable, commanding officer, Headquarters Battalion, addresses the crowd during the retirement ceremony for Sgt. Maj. Avery Crespinformer Headquarters Battalion sergeant major, at Lance Cpl. Torrey L. Gray field aboard the Combat Center, September 29, 2017. Crespin served in more than five units and Military Occupational Specialties in his 22 years of active duty service. (U.S. Marine Corps photo by Lance Cpl. Isaac Cantrell)

A member of the community explains to a Marine the components of his vehicle and displays his car in the first car show at Lucky Park, Twentynine Palms, Calif., September 23, 2017. Marines from motor transportation, military police and explosive ordnance disposal came out to help the continuing effort to foster a positive relationship with the community by showing what resources the military has to offer. (Marine Corps photo by Pfc. Margaret Gale) - A member of the community explains to a Marine the components of his vehicle and displays his car in the first car show at Lucky Park, Twentynine Palms, Calif., September 23, 2017. Marines from motor transportation, military police and explosive ordnance disposal came out to help the continuing effort to foster a positive relationship with the community by showing what resources the military has to offer. (Marine Corps photo by Pfc. Margaret Gale)

Cpl. Liam Gamez, military police man, Provost Marshal’s Office, Headquarters Battalion, trained in Mixed Martial Arts for more than 10 years. He hopes to return to the sport upon his end of active service in the Marine Corps. (U.S. Marine Corps photo by Cpl. Medina Ayala-Lo) - Cpl. Liam Gamez, military police man, Provost Marshal’s Office, Headquarters Battalion, trained in Mixed Martial Arts for more than 10 years. He hopes to return to the sport upon his end of active service in the Marine Corps. (U.S. Marine Corps photo by Cpl. Medina Ayala-Lo)