Coast Guard Commander Shawn J. Nesser, commanding officer of Coast Guard Port Security Unit (PSU) 301, and command staff acknowledge members of the Cape Cod-Reserve based unit prior to returning from a nine month overseas deployment, December 18, 2019. Port Security Units are anti-terrorism force protection expeditionary units with boat crews and shore-side security teams capable of supporting port, waterway, and coastal security within the United States or anywhere in the world. (U.S. Coast Guard photo by Petty Officer 1st Class Emaia Rise)