Red Storm Rising

From time immemorial, the purpose of a navy has been to influence, and sometimes decide, issues on land. This was so with the Greeks of antiquity; the Romans, who created a navy to defeat Carthage; the Spanish, whose armada tried and failed to conquer England; and, most eminently, in the Atlantic and Pacific during two world wars. The sea has always given man inexpensive transport and ease of communication over long distances. It has also provided concealment, because being over the horizon meant being out of sight and effectively beyond reach. The sea has supplied mobility, capability, and support throughout Western history, and those failing in the sea-power test―notably Alexander, Napoleon and Hitler―also failed the longevity one.

— Edward L. Beach, in Keepers of the Sea