190822-N-LQ653-0095 SAN DIEGO (Aug. 22, 2019) Naval Aircrewman (Helicopter) 2nd Class Wrenn Senser, left, and a Coast Guard precision marksman assigned to Maritime Safety Response Team (MSRT) West provide overwatch for Direct Action Section team members in the cabin of an MH-60S Sea Hawk helicopter from the “Blackjacks” of Helicopter Sea Combat Squadron (HSC) 21 while conducting helicopter visit, board, search and seizure (HVBSS) training operations off the coast of San Diego. MSRT West is training with several squadrons from Helicopter Sea Combat Wing Pacific and Helicopter Sea Combat Weapons School Pacific to board and secure vessels that may be held by terrorists holding hostages. (U.S. Navy photo by Mass Communication Specialist 1st Class Patrick W. Menah Jr./Released)