U.S. Marine Corps Col. Sean Dynan, the outgoing commanding officer of the 15th Marine Expeditionary Unit, observes the 15th MEU’s change of command ceremony at Marine Corps Base Camp Pendleton, California, Jan. 16, 2025. The ceremony represented the formal transfer of authority from Dynan to the incoming commander, Col. Robb McDonald. (U.S. Marine Corps photo by Cpl. Joseph Helms)
The 15th Marine Expeditionary Unit conducts a change of command ceremony at Marine Corps Base Camp Pendleton, California, Jan. 16, 2024. During the ceremony, Col. Sean Dynan relinquished command of the 15th MEU to Col. Robb McDonald. (U.S. Marine Corps video by Cpl. Luis Agostini, Cpl. Peyton Kahle, Lance Cpl. Kenneth Twaddell)
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
