IMPERIAL BEACH, Calif. – Cmdr. Alyssa Armstrong relieved Cmdr. Brandon Castle as commanding officer, Maritime Expeditionary Security Squadron (MSRON) 3, during a change-of-command ceremony at Naval Outlying Landing Field, Imperial Beach, Calif., March 21, 2025.
IMPERIAL BEACH, Calif. (NNS) – Maritime Expeditionary Security Group (MESG) 1 welcomed its newest leader during a change-of-command ceremony at Naval Outlying Landing Field, Imperial Beach, Calif., Aug. 19.