Members of a United States Coast Guard (USCG) Maritime Security Response Team (MSRT) Direct Action Section (DAS) pictured aboard USNS Sisler during Exercise Brilliant Mariner, 2006.
Note the night vision goggles (NVGs) mounted on the MSRT operator's tactical helmets.
The Maritime Security Response Teams are a deployable specialized force (DFS) of USCG's Deployable Operations Group.
MSRT Direct Action Sections specialize in maritime counter terrorism and high risk law enforcement operations.
DAS elements are experts at ship boarding techniques, both from boats and helicopters, and close quarters combat.