Every attempt to arrange this difficulty with England had signally failed. The United States offered that all American seamen should be registered and provided with a certificate of citizenship; that the number of crews should be limited by the tonnage of the ship, and if this number was exceeded, British subjects enlisted should be liable to impressment; that deserters should be given up, and that a prohibition should be issued by each party against clandestinely secreting and carrying off the seamen of the other. In 1800 and again in 1806, it was attempted to form treaties in reference to this subject; but the pertinacity with which England adhered to her claim frustrated every effort at reconciliation. In 1803, the difficulty had nearly been adjusted by a convention, Great Britain agreeing to abandon her claim to impressment on the high seas, if allowed to retain it on the narrow seas, or those immediately surrounding her island; but this being rejected as inadmissible by the United States, all subsequent efforts at an arrangement proved unsuccessful. The impressment of seamen continued and was the source of daily increasing abuse. Not only Americans, but Danes, Swedes, Germans, Russians, Frenchmen, Spaniards and Portuguese were seized and forcibly carried off by British men-of-war. There are even well attested instances of Asiatics and Africans being thus impressed. In short, as the war in Europe approached its climax, seamen became more scarce in the British Navy, and, all decency being thrown aside, crews were filled up under color of this claim, regardless even of the show of justice. In 1811, it was computed that the number of men impressed from the American marine service amounted to not less than six thousand. In the spring of 1807, a crisis approached. A small British squadron lay in American waters near the mouth of the Chesapeake Bay, watching some French frigates blockaded at Annapolis. Three of the crew of one of the vessels and one of another had deserted and enlisted on board the United States frigate _Chesapeake_, lying at the Washington Navy yard. The British minister made a formal demand for their surrender. Our government refused compliance because it was ascertained that two of the men were natives of the United States, and there was strong presumptive evidence that a third was, likewise. No more was said; but the commander of the British squadron took the matter into his own hands.