Obviously, it was a great disadvantage to the United States to allow contraband supplies to be accumulated, without interference, close to the blockaded coast, and the Lincoln Government determined to remove this disadvantage. With this end in view it evoked the principle of the continuous voyage, which indeed was not new, but which was destined to become fixed in international law by the Supreme Court of the United States. American cruisers were instructed to stop British ships sailing between the British ports of Liverpool and Nassau; they were to use the recognized international rights of visit and search; and if there was evidence that the cargo was not destined for actual consumption at Nassau, they were to bring the ship into an American port to be dealt with by an American prize court. When such arrests began, the owners clamored to the British Government, and both dealers in contraband and professional blockade-runners worked themselves into a fury because American cruisers watched British ports and searched British ships on the high seas. With regard to this matter, the British Government and the Government at Washington had their last important correspondence during the war. The United States stood firm for the idea that when goods were ultimately intended for the Confederacy, no matter how roundabout the journey, they could be considered as making a single continuous voyage and were liable to capture from the day they left Liverpool. Early in 1865, the Supreme Court of the United States fully developed the principle of continuous voyage in four celebrated cases that are now among the landmarks of international law.*