I send with this letter, first, a copy of my first communication to His Excellency Governor Marcy,[27] to which no reply has reached me; second, the official reports, correspondence, and militia general order respecting the destruction of the _Caroline_, with other documents;[27] third, the correspondence between Commissary-General Arcularius, of the State of New York, respecting the artillery belonging to the government of the State of New York, which has been and is still used in making war upon this Province;[27] fourth, other correspondence arising out of the present state of things on the Niagara frontier;[27] fifth, the special message of Governor Marcy.[27] It will be seen from these documents that a high officer of the government of the State of New York has been sent by his excellency the governor for the express purpose of regaining possession of the artillery of that State which is now employed in hostile aggressions upon this portion of Her Majesty's dominions, and that, being aided and favored, as he acknowledges, by the most friendly cooperation which the commanding officer of Her Majesty's forces could give him, he has been successfully defied by this army of American citizens, and has abandoned the object of his mission in despair. It can hardly fail also to be observed by your excellency that in the course of this negotiation between Mr. Van Rensselaer and the commissary-general of the State of New York this individual, Mr. Van Rensselaer, has not hesitated to place himself within the immediate jurisdiction of the government whose laws he had violated and in direct personal communication with the officer of that government, and has, nevertheless, been allowed to return unmolested to continue in command of American citizens engaged in open hostilities against Great Britain. The exact position, then, of affairs on our frontier may be thus described: An army of American citizens, joined to a very few traitors from Upper Canada, and under the command of a subject of the United States, has been raised and equipped in the State of New York against the laws of the United States and the treaties now subsisting, and are using artillery plundered from the arsenals of the State of New York in carrying on this piratical warfare against a friendly country. The officers and Government of the United States and of the State of New York have attempted to arrest these proceedings and to control their citizens, but they have failed. Although this piratical assemblage are thus defying the civil authorities of both countries, Upper Canada alone is the object of their hostilities. The Government of the United States has failed to enforce its authority by any means, civil or military, and the single question (if it be a question) is whether Upper Canada was bound to refrain from necessary acts of self-defense against a people whom their own Government either could not or would not control.