Those who do not by treaty owe anything to either party in war; for if they do they are confederates. They are not to interfere between contending powers; and the right of security justifies a belligerent in enforcing the conditions. They are not allowed to trade from one port of the enemy to another, nor to be habitually employed in his coasting trade. Indeed the simple conveyance of any article to the opponent of the blockading squadron, at once settles the non-admission, or even hovering.