It may be that the Mexican Government and people have misconstrued or misunderstood our forbearance and our objects in desiring to conclude an amicable adjustment of the existing differences between the two countries. They may have supposed that we would submit to terms degrading to the nation, or they may have drawn false inferences from the supposed division of opinion in the United States on the subject of the war, and may have calculated to gain much by protracting it, and, indeed, that we might ultimately abandon it altogether without insisting on any indemnity, territorial or otherwise. Whatever may be the false impressions under which they have acted, the adoption and prosecution of the energetic policy proposed must soon undeceive them.
In the future prosecution of the war the enemy must be made to feel its pressure more than they have heretofore done. At its commencement it was deemed proper to conduct it in a spirit of forbearance and liberality. With this end in view, early measures were adopted to conciliate, as far as a state of war would permit, the mass of the Mexican population; to convince them that the war was waged, not against the peaceful inhabitants of Mexico, but against their faithless Government, which had commenced hostilities; to remove from their minds the false impressions which their designing and interested rulers had artfully attempted to make, that the war on our part was one of conquest, that it was a war against their religion and their churches, which were to be desecrated and overthrown, and that their rights of person and private property would be violated. To remove these false impressions, our commanders in the field were directed scrupulously to respect their religion, their churches, and their church property, which were in no manner to be violated; fhey were directed also to respect the rights of persons and property of all who should not take up arms against us.
Assurances to this effect were given to the Mexican people by Major-General Taylor in a proclamation issued in pursuance of instructions from the Secretary of War in the month of June, 1846, and again by Major-General Scott, who acted upon his own convictions of the propriety of issuing it, in a proclamation of the 11th of May, 1847. In this spirit of liberality and conciliation, and with a view to prevent the body of the Mexican population from taking up arms against us, was the war conducted on our part. Provisions and other supplies furnished to our Army by Mexican citizens were paid for at fair and liberal prices, agreed upon by the parties. After the lapse of a few months it became apparent that these assurances and this mild treatment had failed to produce the desired effect upon the Mexican population. While the war had been conducted on our part according to the most humane and liberal principles observed by civilized nations, it was waged in a far different spirit on the part of Mexico. Not appreciating our forbearance, the Mexican people generally became hostile to the United States, and availed themselves of every opportunity to commit the most savage excesses upon our troops. Large numbers of the population took up arms, and, engaging in guerrilla warfare, robbed and murdered in the most cruel manner individual soldiers or small parties whom accident or other causes had separated from the main body of our Army; bands of guerrilleros and robbers infested the roads, harassed our trains, and whenever it was in their power cut off our supplies.
The Mexicans having thus shown themselves to be wholly incapable of appreciating our forbearance and liberality, it was deemed proper to change the manner of conducting the war, by making them feel its pressure according to the usages observed under similar circumstances by all other civilized nations.
Accordingly, as early as the 22d of September, 1846, instructions were given by the Secretary of War to Major-General Taylor to "draw supplies" for our Army "from the enemy without paying for them, and to require contributions for its support, if in that way he was satisfied he could get abundant supplies for his forces." In directing the execution of these instructions much was necessarily left to the discretion of the commanding officer, who was best acquainted with the circumstances by which he was surrounded, the wants of the Army, and the practicability of enforcing the measure. General Taylor, on the 26th of October, 1846, replied from Monterey that "it would have been impossible hitherto, and is so now, to sustain the Army to any extent by forced contributions of money or supplies." For the reasons assigned by him, he did not adopt the policy of his instructions, but declared his readiness to do so "should the Army in its future operations reach a portion of the country which may be made to supply the troops with advantage." He continued to pay for the articles of supply which were drawn from the enemy's country.
Similar instructions were issued to Major-General Scott on the 3d of April, 1847, who replied from Jalapa on the 20th of May, 1847, that if it be expected "that the Army is to support itself by forced contributions levied upon the country we may ruin and exasperate the inhabitants and starve ourselves." The same discretion was given to him that had been to General Taylor in this respect. General Scott, for the reasons assigned by him, also continued to pay for the articles of supply for the Army which were drawn from the enemy.
After the Army had reached the heart of the most wealthy portion of Mexico it was supposed that the obstacles which had before that time prevented it would not be such as to render impracticable the levy of forced contributions for its support, and on the 1st of September and again on the 6th of October, 1847, the order was repeated in dispatches addressed by the Secretary of War to General Scott, and his attention was again called to the importance of making the enemy bear the burdens of the war by requiring them to furnish the means of supporting our Army, and he was directed to adopt this policy unless by doing so there was danger of depriving the Army of the necessary supplies. Copies of these dispatches were forwarded to General Taylor for his government.
On the 31st of March last I caused an order to be issued to our military and naval commanders to levy and collect a military contribution upon all vessels and merchandise which might enter any of the ports of Mexico in our military occupation, and to apply such contributions toward defraying the expenses of the war. By virtue of the right of conquest and the laws of war, the conqueror, consulting his own safety or convenience, may either exclude foreign commerce altogether from all such ports or permit it upon such terms and conditions as he may prescribe. Before the principal ports of Mexico were blockaded by our Navy the revenue derived from import duties under the laws of Mexico was paid into the Mexican treasury. After these ports had fallen into our military possession the blockade was raised and commerce with them permitted upon prescribed terms and conditions. They were opened to the trade of all nations upon the payment of duties more moderate in their amount than those which had been previously levied by Mexico, and the revenue, which was formerly paid into the Mexican treasury, was directed to be collected by our military and naval officers and applied co the use of our Army and Navy. Care was taken that the officers, soldiers, and sailors of our Army and Navy should be exempted from the operations of the order, and, as the merchandise imported upon which the order operated must be consumed by Mexican citizens, the contributions exacted were in effect the seizure of the public revenues of Mexico and the application of them to our own use. In directing this measure the object was to compel the enemy to contribute as far as practicable toward the expenses of the war.
For the amount of contributions which have been levied in this form I refer you to the accompanying reports of the Secretary of War and of the Secretary of the Navy, by which it appears that a sum exceeding half a million of dollars has been collected. This amount would undoubtedly have been much larger but for the difficulty of keeping open communications between the coast and the interior, so as to enable the owners of the merchandise imported to transport and vend it to the inhabitants of the country. It is confidently expected that this difficulty will to a great extent be soon removed by our increased forces which have been sent to the field.
Measures have recently been adopted by which the internal as well as the external revenues of Mexico in all places in our military occupation will be seized and appropriated to the use of our Army and Navy.