On a careful and deliberate examination of their contents [of the correspondence with the Mexican Government], and considering the spirit manifested by the Mexican Government, it has become my painful duty to return the subject as it now stands to Congress, to whom it belongs to decide upon the time, the mode, and the measure of redress. Had the United States at that time adopted compulsory measures and taken redress into their own hands, all our difficulties with Mexico would probably have been long since adjusted and the existing war have been averted. Magnanimity and moderation on our part only had the effect to complicate these difficulties and render an amicable settlement of them the more embarrassing. That such measures of redress under similar provocations committed by any of the powerful nations of Europe would have been promptly resorted to by the United States can not be doubted. The national honor and the preservation of the national character throughout the world, as well as our own self-respect and the protection due to our own citizens, would have rendered such a resort indispensable. The history of no civilized nation in modern times has presented within so brief a period so many wanton attacks upon the honor of its flag and upon the property and persons of its citizens as had at that time been borne by the United States from the Mexican authorities and people. But Mexico was a sister republic on the North American continent, occupying a territory contiguous to our own, and was in a feeble and distracted condition, and these considerations, it is presumed, induced Congress to forbear still longer.