CEVAP:

Blockade is a trade-related economic instrument that can be used both in peacetime and wartime. In peacetime blockade (also known as pacific blockade), a state tries to block entrance and exist of ships carrying the flag of a country that it is blockading into its harbours with its navy. While peacetime blockade is in principle applies only to the ships of the blockaded country, in practice it is also applied to third countries’ ships.