U.S. Coast Guard Port Security Unit 311 (PSU 311) conducted vessel familiarization training with Marines from 3rd Battalion, 4th Marine Regiment, 1st Marine Division at Coast Guard Base Los Angeles / Long Beach, June 5th, 2025. Marine Corps personnel embarked and disembarked the Coast Guard's Transportable Port Security Boat (TPSB) using various methods. The training is in preparation for Exercise Arctic Edge 2025, simulating CONUS and OCONUS mission sets and fosters interoperability of the two services. The Coast Guard PSU's are designed for worldwide deployable operations and are crewed primarily of Reserve members. (U.S. Coast Guard Photo by 2nd Class Petty Officer Travis Warren)