Captain Carl A. Lahti, U.S. Navy, Commanding Officer of Naval Submarine Base New London, in the Emergency Operations Center, participaates in a Naval Security Force drill which includes live automatic weapons firing blanks along the Thames River in Groton, Thursday, Feb. 20, 2014.  The exercises are part of the Citadel Protect and Solid Curtain-Citadel Shield 2014 anti-terrorism program.
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