With the possible exception of the Second World War, every war in American history has been opposed by a substantial portion of the population. Loyalists in the American Revolution, anti-imperialists in the Spanish-American war, working class people in World War I and the youthful protesters of the Vietnam war were just some of the groups that oppose foreign wars. "Mr. Polk's War" was no exception, as many felt that the war would result in a further extension of slaver. The following are excerpts from President Polk's war message or his justification for engaging in the conflict.
The existing state of the relations between the United States and Mexico renders it proper that I should bring the subject to the consideration of Congress. In my message at the commencement of your present session the _ causes which led to the suspension of diplomatic intercourse between the two countries, and the _ wrongs and injuries committed by the Mexican Government on citizens of the United States in their persons and property were briefly set forth.
The strong desire to establish peace with Mexico _ induced me in September last to seek the reopening of diplomatic relations between the two countries.... An envoy of the United States repaired to Mexico with full powers to adjust every existing difference. But though present on the Mexican soil by agreement between the two Governments, invested with full powers, and bearing evidence of the most friendly dispositions, his mission has been unavailing. The Mexican Government not only refused to receive him or listen to his propositions, but after a long-continued series of menaces have at last invaded our territory and shed the blood of our fellow-citizens on our own soil. _
Mr. Slidell arrived at Vera Cruz on the 30th of November, and was courteously received by the authorities of that city. But the Government of General Herrera was then tottering to its fall. The revolutionary party had seized upon the Texas question to effect or hasten its overthrow. Its determination to restore friendly relations with the United States, and to receive our minister to negotiate for the settlement of this question, was violently assailed, and was made the great theme of denunciation against it. _
Thus the Government of Mexico, though solemnly pledged by official acts in October last to receive and accredit an American envoy, violated their plighted faith and refused the offer of a peaceful adjustment of our difficulties. Not only was the offer rejected, but the indignity of its rejection was enhanced by the manifest breach of faith in refusing to admit the envoy who came because they had bound themselves to receive him. _
In my message at the commencement of the present session I informed you that upon the earnest appeal both of the Congress and convention of Texas I had ordered an efficient military force to take a position "between the Nueces and the Del Norte." This had become necessary to meet a threatened invasion of Texas by the Mexican forces, for which extensive military preparations had been made. _
Meantime Texas, by the final action of our Congress, had become an integral part of our Union. _
The movement of the troops to the Del Norte was made by the commanding general under positive instructions to abstain from all aggressive acts toward Mexico or Mexican citizens and to regard the relations between that Republic and the United States as peaceful unless she should declare war or commit acts of hostility indicative of a state of war. He was specially directed to protect private property and respect personal rights.
The Mexican forces at Matamoras assumed a belligerent attitude, and on the 12th of April General Ampudia, then in command, notified General Taylor to break up his camp within twenty-four hours and to retire beyond the Nueces River, and in the event of his failure to comply with these demands announced that arms, and arms alone, must decide the question. But no open act of hostility was committed until the 24th of April. On that day General Arista, who had succeeded to the command of the Mexican forces, communicated to General Taylor that "he considered hostilities commenced and should prosecute them." A party of dragoons of 63 men and officers were on the same day dispatched from the American camp up the Rio del Norte, on its left bank, to ascertain whether the Mexican troops had crossed or were preparing to cross the river, "became engaged with a large body of these troops, and after a short affair, in which some 16 were killed and wounded, appear to have been surrounded and compelled to surrender."
The grievous wrongs perpetrated by Mexico upon our citizens throughout a long period of years remain unredressed, and solemn treaties pledging her public faith for this redress have been disregarded. A government either unable or unwilling to enforce the execution of such treaties fails to perform one of its plainest duties.
_ As war exists, and, notwithstanding all our efforts to avoid it, exists by the act of Mexico herself, we are called upon by every consideration of duty and patriotism to vindicate with decision the honor, the rights, and the interests of our country.
_ In further vindication of our rights and defense of our territory, I involve the prompt action of Congress to recognize the existence of the war, and to place at the disposition of the Executive the means of prosecuting the war with vigor, and thus hastening the restoration of peace. To this end I recommend that authority should be given to call into the public service a large body of volunteers to serve for not less than six or twelve months unless sooner discharged. A volunteer force is beyond question more efficient than any other description of citizen soldiers, and it is not to be doubted that a number far beyond that required would readily rush to the field upon the call of their country. I further recommend that a liberal provision be made for sustaining our entire military force and furnishing it with supplies and munitions of war. _
James K. Polk
World History
