What is more characteristically English than the Navy?
The relationship between naval power and British sovereignty is one of long standing in British foreign policy. This was especially evident in the nineteenth century, when Britain achieved almost unchallenged global naval pre-eminence following the Napoleonic Wars, keeping order in a world that British commercial interests were creating. As a consequence, the traditional role of the navy as a national defense force was changing dramatically to that of an international policeman on the one hand and surrogate statesman on the other. These two roles were generally most pronounced in the emerging tropical areas of trade in Asia, Africa, and South America.
It is in relation to Africa that this essay is concerned, and over the course of the nineteenth century, the influence of the Royal Navy on African societies was an evolving, but considerable, force--as surveyor, policeman, employer, ally, adversary, diplomat, and enforcer. On the whole, Britain's Africa policy throughout much of the century was based on the suppression of the slave trade, while simultaneously providing protection for British citizens promoting “legitimate” commercial interests.
Since the trade in slaves from Africa was chiefly a maritime enterprise, its navy became the chief instrument for implementing these foreign policy objectives, a role that shifted in the second half of the century to a more direct imperialist posture.