However, exclusive US control of this resource was eventually challenged, and the Bering Sea Controversy resulted when the United States seized over 150 sealing ships flying the British flag, based out of the coast of British Columbia. The conflict between the United States and Britain was resolved by an arbitration tribunal in 1893. The waters of the Bering Sea were deemed to be international waters, contrary to the US contention that they were an internal sea. The US was required to make a payment to Britain, and both nations were required to follow regulations developed to preserve the resource.