Captain Mark Bock, U.S. Navy, a career submariner has served in numerous submarines, including command of the USS Narwhal (SSN-671). Ashore, he has served in two major Program Manager jobs, one as the Undersea Defensive Warfare Systems Program Manager (PMS-415), and the other, his current assignment, as the SSGN Program Manager (PMS-398), both under the Program Executive Officer for Submarines.