ln international law. A marine investment or beleaguering of a town or harbor. A sort of olrcumvallatlon round a place by whlch all foreign connection and correspondence is, as far as human power can effect it, to be cut off. 1 C. Rob. Adm. 151. It is not necessary, however, that the place should be Invested by land, as well as by sea, in order to constitute a legal block-ade; and, lf a place be blockaded by sea only, it is no violation of belligerent rights for tbe neutral to carry on commerce wlth it by inland communications. 1 Kent, Comm. 147