Uploaded July 2026 | Updated September 2026, 2 weeks ago

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U.S. Marine Corps Officer Candidates School staff and John. H. Bradley Health Clinic staff conduct a mass casualty training exercise at OCS on Marine Corps Base Quantico. The exercise prepares Marines, sailors and medical personnel to provide aid to a large number of candidates with injuries or heat-related illnesses as they go through the process of becoming Marine Corps Officers.

U.S. Marine Corps video by
Cpl. Joshua Munsen
May 14, 2026
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Public Domain Notice:
The original work used in this video ... is in the public domain in the United States, as it is a work prepared by an officer or employee of the United States Government associated with the person's official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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