The incident occurred during routine training aboard the base, the service announced.
The activation comes as part of the Corps' Force Design 2030 recalibration toward agile logistics in the contested island chains of the Pacific.
Master-at-Arms 1st Class Jeffrey Diaz died after attempting to rescue children from high surf at a Kauai beach over the weekend, authorities said.
By Beth Sullivan
Netflix has released its four-episode documentary series on the U.S. Marine Corps.
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