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A civilian instructor trains a U.S. Marine on the use of an Sensitive but Unclassified - Encrypted (SBU-E) network node as part of Marine Corps Tactical Systems Support Activity's (MCTSSA) Expeditionary Warfare Operations Kit (EWOK). EWOK is self contained, secure, commercial-grade tactical network designed to turn frontline Marines into sensors. (U.S. Marine Corps Photo by Joseph R. Vincent, CTR)

MCTSSA Prepares FMF for E...

U.S. Marine Corps photo by Joseph R. Vincent/Released 260526-M-TH074-1024.JPG

May 29, 2026

A civilian instructor trains a U.S. Marine on the use of an Sensitive but Unclassified - Encrypted (SBU-E) network node as part of Marine Corps Tactical Systems Support Activity's (MCTSSA) Expeditionary Warfare Operations Kit (EWOK). EWOK is self contained, secure, commercial-grade tactical network designed to turn frontline Marines into sensors. (U.S. Marine Corps Photo by Joseph R. Vincent, CTR)

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CAMERA

ILCE-9M3

LENS

E 28-75mm F2.8 A063

APERTURE

40/10

SHUTTERSPEED

1/160

ISO

2500

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.