The royal navy of England hath ever been its greatest defense and ornament; it is its ancient and natural strength; the floating bulwark of our island.
Book I, ch. 13: Of the Military and Maritime States. - Commentaries on the Laws of England (1765–1769)
Avalon Project - Blackstone's Commentaries on the Laws of England - Book the First : Chapter the Thirteenth : Of the Military and Maritime States[avalon.law.yale.edu]