A Compilation of the Messages and Papers of the Presidents. Volume 4, part 3: James Knox Polk

by Unknown

These were the leading considerations which induced me to authorize the terms of peace which were proposed to Mexico. They were rejected, and, negotiations being at an end, hostilities were renewed. An assault was made by our gallant Army upon the strongly fortified places near the gates of the City of Mexico and upon the city itself, and after several days of severe conflict the Mexican forces, vastly superior in number to our own, were driven from the city, and it was occupied by our troops.

Immediately after information was received of the unfavorable result of the negotiations, believing that his continued presence with the Army could be productive of no good, I determined to recall our commissioner. A dispatch to this effect was transmitted to him on the 6th of October last. The Mexican Government will be informed of his recall, and that in the existing state of things I shall not deem it proper to make any further overtures of peace, but shall be at all times ready to receive and consider any proposals which may be made by Mexico.

Since the liberal proposition of the United States was authorized to be made, in April last, large expenditures have been incurred and the precious blood of many of our patriotic fellow-citizens has been shed in the prosecution of the war. This consideration and the obstinate perseverance of Mexico in protracting the war must influence the terms of peace which it may be deemed proper hereafter to accept.

Our arms having been everywhere victorious, having subjected to our military occupation a large portion of the enemy's country, including his capital, and negotiations for peace having failed, the important questions arise, in what manner the war ought to be prosecuted and what should be our future policy. I can not doubt that we should secure and render available the conquests which we have already made, and that with this view we should hold and occupy by our naval and military forces all the ports, towns, cities, and Provinces now in our occupation or which may hereafter fall into our possession; that we should press forward our military operations and levy such military contributions on the enemy as may, as far as practicable, defray the future expenses of the war.

Had the Government of Mexico acceded to the equitable and liberal terms proposed, that mode of adjustment would have been preferred. Mexico having declined to do this and failed to offer any other terms which could be accepted by the United States, the national honor, no less than the public interests, requires that the war should be prosecuted with increased energy and power until a just and satisfactory peace can be obtained. In the meantime, as Mexico refuses all indemnity, we should adopt measures to indemnify ourselves by appropriating permanently a portion of her territory. Early after the commencement of the war New Mexico and the Californias were taken possession of by our forces. Our military and naval commanders were ordered to conquer and hold them, subject to be disposed of by a treaty of peace.

These Provinces are now in our undisputed occupation, and have been so for many months, all resistance on the part of Mexico having ceased within their limits. I am satisfied that they should never be surrendered to Mexico. Should Congress concur with me in this opinion, and that they should be retained by the United States as indemnity, I can perceive no good reason why the civil jurisdiction and laws of the United States should not at once be extended over them. To wait for a treaty of peace such as we are willing to make, by which our relations toward them would not be changed, can not be good policy; whilst our own interest and that of the people inhabiting them require that a stable, responsible, and free government under our authority should as soon as possible be established over them. Should Congress, therefore, determine to hold these Provinces permanently, and that they shall hereafter be considered as constituent parts of our country, the early establishment of Territorial governments over them will be important for the more perfect protection of persons and property; and I recommend that such Territorial governments be established. It will promote peace and tranquillity among the inhabitants, by allaying all apprehension that they may still entertain of being again subjected to the jurisdiction of Mexico. I invite the early and favorable consideration of Congress to this important subject.

Besides New Mexico and the Californias, there are other Mexican Provinces which have been reduced to our possession by conquest. These other Mexican Provinces are now governed by our military and naval commanders under the general authority which is conferred upon a conqueror by the laws of war. They should continue to be held, as a means of coercing Mexico to accede to just terms of peace. Civil as well as military officers are required to conduct such a government. Adequate compensation, to be drawn from contributions levied on the enemy, should be fixed by law for such officers as may be thus employed. What further provision may become necessary and what final disposition it may be proper to make of them must depend on the future progress of the war and the course which Mexico may think proper hereafter to pursue.

With the views I entertain I can not favor the policy which has been suggested, either to withdraw our Army altogether or to retire to a designated line and simply hold and defend it. To withdraw our Army altogether from the conquests they have made by deeds of unparalleled bravery, and at the expense of so much blood and treasure, in a just war on our part, and one which, by the act of the enemy, we could not honorably have avoided, would be to degrade the nation in its own estimation and in that of the world. To retire to a line and simply hold and defend it would not terminate the war. On the contrary, it would encourage Mexico to persevere and tend to protract it indefinitely. It is not to be expected that Mexico, after refusing to establish such a line as a permanent boundary when our victorious Army are in possession of her capital and in the heart of her country, would permit us to hold it without resistance. That she would continue the war, and in the most harassing and annoying forms, there can be no doubt. A border warfare of the most savage character, extending over a long line, would be unceasingly waged. It would require a large army to be kept constantly in the field, stationed at posts and garrisons along such a line, to protect and defend it. The enemy, relieved from the pressure of our arms on his coasts and in the populous parts of the interior, would direct his attention to this line, and, selecting an isolated post for attack, would concentrate his forces upon it. This would be a condition of affairs which the Mexicans, pursuing their favorite system of guerrilla warfare, would probably prefer to any other. Were we to assume a defensive attitude on such a line, all the advantages of such a state of war would be on the side of the enemy. We could levy no contributions upon him, or in any other way make him feel the pressure of the war, but must remain inactive and await his approach, being in constant uncertainty at what point on the line or at what time he might make an assault. He may assemble and organize an overwhelming force in the interior on his own side of the line, and, concealing his purpose, make a sudden assault upon some one of our posts so distant from any other as to prevent the possibility of timely succor or reenforcements, and in this way our gallant Army would be exposed to the danger of being cut off in detail; or if by their unequaled bravery and prowess everywhere exhibited during this war they should repulse the enemy, their numbers stationed at any one post may be too small to pursue him. If the enemy be repulsed in one attack, he would have nothing to do but to retreat to his own side of the line, and, being in no fear of a pursuing army, may reenforce himself at leisure for another attack on the same or some other post. He may, too, cross the line between our posts, make rapid incursions into the country which we hold, murder the inhabitants, commit depredations on them, and then retreat to the interior before a sufficient force can be concentrated to pursue him. Such would probably be the harassing character of a mere defensive war on our part. If our forces when attacked, or threatened with attack, be permitted to cross the line, drive back the enemy, and conquer him, this would be again to invade the enemy's country after having lost all the advantages of the conquests we have already made by having voluntarily abandoned them.

To hold such a line successfully and in security it is far from being certain that it would not require as large an army as would be necessary to hold all the conquests we have already made and to continue the prosecution of the war in the heart of the enemy's country. It is also far from being certain that the expenses of the war would be diminished by such a policy.

I am persuaded that the best means of vindicating the national honor and interest and of bringing the war to an honorable close will be to prosecute it with increased energy and power in the vital parts of the enemy's country.