Submariners of HMS Vigilant holding their caps by Defence Images35Submariners of HMS Vigilant holding their caps by Defence ImagesUSS Pogy (SSN 647) Arctic ice. USN Steven H. Vanderwerff45USS Pogy (SSN 647) Arctic ice. USN Steven H. VanderwerffUSS Bowfin (SS-287)USN photo by Cmdr. Corey Barker54USS Bowfin (SS-287)USN photo by Cmdr. Corey BarkerUS Navy poster for submarine service, 1944 a63US Navy poster for submarine service, 1944 aUS Navy poster for submarine service, 1944.70US Navy poster for submarine service, 1944.