During his 32 years of operational military service, President Clark served in some of the most challenging and highest visibility positions in the Submarine Force, including Commodore of Submarine Squadron FOUR, and Commanding Officer of the nuclear powered submarine USS CONNECTICUT (SSN 22). Considered a strategic visionary, expert tactician, and one of the most motivational leaders in the Submarine Force, his commands consistently led the way in retention, operational readiness, warfighting, and innovation.