"housed the fleet" . . . . . . . "main naval base" . . . "Sevastopol" . . . . . "1783" . . "Sevastopol Naval Base" . . . . . . "1772\u20131783" . . . . "HQ" . . . "naval base" . . . . . . . . . "main base" . "major naval base" . "Russian Naval Forces base" . "primary headquarters and facilities" . . . . . . . "Sevastopol Naval Base" .