Marines with 2nd Radio Battalion prepare to shed their gear underwater in order to maintain readiness and renew their swim qualifications aboard Marine Corps Base Camp Lejeune, March 16, 2015. Marines with a basic swim qualification must renew it every two years, and Marines with an intermediate qualification renew it every three years. 2nd Radio Battalion completes swim qualification 150316-M-CO304-293

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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
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Keywords: 2d, armed, battalion, conflict, corps, dye, forces, marine, marines, michael, military, qual, radio, states, swim, training, united, usmc, war