I congratulate you on the success which has thus attended our military and naval operations. In less than seven months after Mexico commenced hostilities, at a time selected by herself, we have taken possession of many of her principal ports, driven back and pursued her invading army, and acquired military possession of the Mexican Provinces of New Mexico, New Leon, Coahuila, Tamaulipas, and the Californias, a territory larger in extent than that embraced in the original thirteen States of the Union, inhabited by a considerable population, and much of it more than 1,000 miles from the points at which we had to collect our forces and commence our movements. By the blockade the import and export trade of the enemy has been cut off. Well may the American people be proud of the energy and gallantry of our regular and volunteer officers and soldiers. The events of these few months afford a gratifying proof that our country can under any emergency confidently rely for the maintenance of her honor and the defense of her rights on an effective force, ready at all times voluntarily to relinquish the comforts of home for the perils and privations of the camp. And though such a force may be for the time expensive, it is in the end economical, as the ability to command it removes the necessity of employing a large standing army in time of peace, and proves that our people love their institutions and are ever ready to defend and protect them. While the war was in a course of vigorous and successful prosecution, being still anxious to arrest its evils, and considering that after the brilliant victories of our arms on the 8th and 9th of May last the national honor could not be compromitted by it, another overture was made to Mexico, by my direction, on the 27th of July last to terminate hostilities by a peace just and honorable to both countries. On the 31st of August following the Mexican Government declined to accept this friendly overture, but referred it to the decision of a Mexican Congress to be assembled in the early part of the present month. I communicate to you herewith a copy of the letter of the Secretary of State proposing to reopen negotiations, of the answer of the Mexican Government, and of the reply thereto of the Secretary of State, The war will continue to be prosecuted with vigor as the best means of securing peace. It is hoped that the decision of the Mexican Congress, to which our last overture has been referred, may result in a speedy and honorable peace. With our experience, however, of the unreasonable course of the Mexican authorities, it is the part of wisdom not to relax in the energy of our military operations until the result is made known. In this view it is deemed important to hold military possession of all the Provinces which have been taken until a definitive treaty of peace shall have been concluded and ratified by the two countries.