Seapower -- See Sea-power Here are entered works on long term questions of naval strength, including weapons, installations, national resources, etc., allowing a country to maintain control of the sea and the air space above. Works on the strategic and tactical employment of land or sea-based forces of a country at the time its maritime interests are threatened, so as to gain or exploit control of the sea or deny its use to the enemy, are entered under Sea control. --subdivision History, Naval under names of countries; and names of individual navies, e.g. United States. Navy