Civilian employees use hand signals to lower the M1A1 “Abrams” tank onto the rail cars aboard Marine Corps Logistics Base Barstow, Calif., July 7. - Civilian employees use hand signals to lower the M1A1 “Abrams” tank onto the rail cars aboard Marine Corps Logistics Base Barstow, Calif., July 7.

An M1A1 Abrams tank fires its main gun during a live-fire exercise, Aug. 19. - An M1A1 Abrams tank fires its main gun during a live-fire exercise, Aug. 19.

A U.S. Marine performs maintenance on an M1A1 Abrams tank, July 22. - A U.S. Marine performs maintenance on an M1A1 Abrams tank, July 22.

Cpl. Jose Peralta, a Marine with Company B, 2nd Tank Battalion, 2nd Marine Division, guides a tank into a lane after conducting breaching exercises aboard Marine Corps Base Camp Lejeune, North Carolina, Dec. 8. Marines with 2nd Tank Battalion along with 2nd CEB worked together to conduct breaching exercises in which they provided support fire while Assault Breacher Vehicles eliminated tank pits and created a lane in which tanks may safely travel, aboard Camp Lejeune, Dec. 8-10. - Cpl. Jose Peralta, a Marine with Company B, 2nd Tank Battalion, 2nd Marine Division, guides a tank into a lane after conducting breaching exercises aboard Marine Corps Base Camp Lejeune, North Carolina, Dec. 8. Marines with 2nd Tank Battalion along with 2nd CEB worked together to conduct breaching exercises in which they provided support fire while Assault Breacher Vehicles eliminated tank pits and created a lane in which tanks may safely travel, aboard Camp Lejeune, Dec. 8-10.

Marines with Tank Platoon, Company B, Ground Combat Element Integrated Task Force, conduct a casualty evacuation drill on the outside trails of Landing Zone Hawk at Marine Corps Base Camp Lejeune, North Carolina, Nov. 13, 2014. From October 2014 to July 2015, the GCEITF will conduct individual and collective level skills training in designated ground combat arms occupational specialties in order to facilitate the standards based assessment of the physical performance of Marines in a simulated operating environment performing specific ground combat arms tasks. - Marines with Tank Platoon, Company B, Ground Combat Element Integrated Task Force, conduct a casualty evacuation drill on the outside trails of Landing Zone Hawk at Marine Corps Base Camp Lejeune, North Carolina, Nov. 13, 2014. From October 2014 to July 2015, the GCEITF will conduct individual and collective level skills training in designated ground combat arms occupational specialties in order to facilitate the standards based assessment of the physical performance of Marines in a simulated operating environment performing specific ground combat arms tasks.