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U.S. Marine Corps Sgt. Maj. Carlos A. Ruiz, the sergeant major of the Marine Corps, meets and speaks with Marine Corps officers attending National Defense University at the National War College, Washington, D.C., March 12, 2025. Ruiz spoke with the Marines and faculty on the topic of preparing today for the unknown conflict of tomorrow. (U.S. Marine Corps photo by GySgt Jordan E. Gilbert)

SMMC Speaks at National W...

U.S. Marine Corps photo by Gunnery Sgt. Jordan Gilbert/Released 250307-M-RB959-5202.JPG

Mar 18, 2025

U.S. Marine Corps Sgt. Maj. Carlos A. Ruiz, the sergeant major of the Marine Corps, meets and speaks with Marine Corps officers attending National Defense University at the National War College, Washington, D.C., March 12, 2025. Ruiz spoke with the Marines and faculty on the topic of preparing today for the unknown conflict of tomorrow. (U.S. Marine Corps photo by GySgt Jordan E. Gilbert)

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CAMERA

Canon EOS R

LENS

RF24-240mm F4-6.3 IS USM

APERTURE

45/10

SHUTTERSPEED

1/125

ISO

100

IMAGE IS PUBLIC DOMAIN

This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.