Former crewmembers of submarines USS Cavalla SS - SSK - AGSS - 244 and USS Cavalla SSN 684 gather with their shipmates, families and friends at Seawolf Park in Galveston, Texas, for the “All Cavalla Reunion Memorial Service,” April 21, 2018. U.S. Air Force Reserve Master Sgt. Jeff Walston, who is a public affairs technician assigned to the 913th Airlift Group, at Little Rock Air Force Base, Ark., served on the Cavalla (SSN 684) from 1977 to 1979, during a 22.5 year stint in the U.S. Navy, before joining the Air Force Reserve in 2001. Seawolf Park is dedicated to the USS Seawolf (SS 197) which is still on Eternal Patrol with 83 crewmembers and 17 Army personnel. (Courtesy photo by Jeff Walston)