U.S. Navy Culinary Specialist 2nd Class Alberto Santana, assigned to Assault Craft Unit 5, pours paint into a tray during Operation Clean Sweep II at Marine Corps Base Camp Pendleton, California, April 10, 2025. Part of the larger Barracks 360 Reset initiative, OCS II builds upon the success of the first iteration by sustaining improved barracks conditions and further transforming I MEF’s organizational culture by reinvesting our time, resources, training and efforts into the barracks. (U.S. Marine Corps photo by Lance Cpl. Kenneth Twaddell)
U.S. Marines assigned to the 15th Marine Expeditionary Unit, I Marine Expeditionary Force, conduct chemical, biological, radiological, nuclear (CBRN) training at Marine Corps Base Camp Pendleton, California, April 3, 2025. The CBRN training served to increase Marines’ confidence in their equipment and maintain proficiency in operating in a CBRN-contaminated environment. The M-50 field protective mask is designed to provide 24 hours of continuous head-eye-respiration for protection against chemical agents, biological agents, radiological particulates, and toxic industrial chemicals. (U.S. Marine Corps video by Cpl. Luis Agostini)
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MARINE CORPS BASE CAMP PENDLETON, Calif. - U.S. Marine Corps Col. Sean P. Dynan relinquished command of the 15th Marine Expeditionary Unit to Col. Robb T. McDonald during a ceremony at Marine Corps Base Camp Pendleton, California, Jan. 16.
Dynan, a native of Hanson, Massachusetts, served as the commanding officer of the 15th MEU from July 2021 to January 2025. Under Dynan’s charge, the 15th MEU conducted bilateral training with the Japan Ground Self Defense Force during Exercise Iron Fist 2022, participated in Los Angeles Fleet Week 2022, and trained for, then deployed to the U.S. 3rd and 7th Fleet areas of operations during its Western Pacific Deployment in 2024.
“To serve as a member of our nation’s premier crisis response...
01.16.2025 | MARINE CORPS BASE CAMP PENDLETON, CALIFORNIA, US |
Story by 1st Lt. Robert Nanna
