1906-1962 1939-1945 20thcentury admirals american arcticregions biogeochemistry biography campaigns carboncycle(biogeochemistry) chemicaloceanography coldwar discoveryandexploration environmentallaw golovko henrybacon(ship) history internationalstatus lawofthesea libertyships merchantmarine nautilus(submarine:ssn-571) navaloperations personalnarratives russian shipwrecks sovereignty soviet sovietunion submarinecaptains territorialwaters underwaterexploration unitedstates waterboundaries worldwar