Definition of "naval blockade" [naval blockade]

• The interdiction of a nation's lines of communication at sea by the use of naval power (noun)

WordNet. Princeton University. 2010.

• "In May, when Nigerian troops took and destroyed the once prosperous city of Port Harcourt and put up a naval blockade and encircled Biafra with eighty-five thousand soldiers, the rebel Biafrans lost all connection to the outside world."
• "Cuban Missile Crisis — the date that John F. Kennedy announced the naval blockade of Cuba to prevent the USSR’s delivery of more missiles.”"