This treaty was construed as giving German prizes brought to American ports the right to come and go. The British Government contested the German claim by demanding the release of the _Appam_ under The Hague Convention of 1907. This international treaty provided that a merchantman prize could only be taken to a neutral port under certain circumstances of distress, injury, or lack of food, and if she did not depart within a stipulated time the vessel could not be interned, but must be restored to her original owners with all her cargo. Were the _Appam_ thus forcibly released she would at once have been recaptured by British cruisers waiting off the Virginia Capes. The view which prevailed officially was that the case must be governed by the Prussian treaty, a liberal construction of which appeared to permit the _Appam_ to remain indefinitely at Newport News. This was what happened, but not through any acquiescence of the State Department in the German contention. The _Appam_ owners, the British and African Steam Navigation Company, brought suit in the Federal Courts for the possession of the vessel, on the ground that, having been brought into a neutral port, she lost her character as a German prize, and must be returned to her owners. Pending a determination of this action, the _Appam_ was seized by Federal marshals under instructions from the United States District Court, under whose jurisdiction the vessel remained. After twelve months of war Great Britain became seriously concerned over the changed conditions of her trade with the United States. Before the war the United States, despite its vast resources and commerce, bought more than it sold abroad, and was thus always a debtor nation, that is, permanently owing money to Europe. In the stress of war Great Britain's exports to the United States, like those of her Allies, declined and her imports enormously increased. She sold but little of her products to her American customers and bought heavily of American foodstuffs, cotton, and munitions. The result was that Great Britain owed a great deal more to the United States than the latter owed her. The unparalleled situation enabled the United States to pay off her old standing indebtedness to Europe and became a creditor nation. American firms were exporting to the allied powers, whose almoner Great Britain was, commodities of a value of $100,000,000 a month in excess of the amount they were buying abroad. Hence what gold was sent from London, at the rate of $15,000,000 to $40,000,000 monthly, to pay for these huge purchases was wholly insufficient to meet the accumulating balance of indebtedness against England.