Marines with 3rd Battalion, 4th Marine Regiment, 1st Marine Division (MARDIV), utilize an M1A1 Abrams tank during exercise Steel Knight (SK) 18 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Dec. 10, 2017. SK-18 is a division level exercise designed to enhance the command and control and interoperability with the 1st MARDIV, its adjacent units and naval support forces. ( Marine Corps photo by Cpl. Joseph Prado)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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