Captain Johnson, a retired surface officer, served in destroyers, cruisers, frigates, and battleships, including a tour as commanding officer of the USS Vandegrift (FFG-48). Ashore he served in various program development billets and was director of the Prospective Commanding Officer/Prospective Executive Officer course at Surface Warfare Officer School in Newport, Rhode Island. Today, he works for Northrop Grumman Information Technology.