It is true that Texas claimed the eastern bank of the Rio Grande from its source to its mouth; and while the Texans held Santa Anna prisoner, under duress of arms and the stronger pressure of his own conscience, which assured him that he deserved death as a murderer, "he solemnly sanctioned, acknowledged, and ratified" their independence with whatever boundaries they chose to claim; but the Bustamente administration lost no time in repudiating this treaty, and at once renewed the war, which had been carried on in a fitful way ever since. [Illustration: HENRY CLAY.] [Sidenote: August 23, 1843.] But leaving out of view this special subject of admitted dispute, the Mexican Government had warned our own in sufficiently formal terms that annexation could not be peacefully effected. When A. P. Upshur first began his negotiations with Texas, the Mexican Minister of Foreign Affairs, at his earliest rumors of what was afoot, addressed a note to Waddy Thompson, our Minister in Mexico, referring to the reported intention of Texas to seek admission, to the Union, and formally protesting against it as "an aggression unprecedented in the annals of the world," and adding "if it be indispensable for the Mexican nation to seek security for its rights at the expense of the disasters of war, it will call upon God, and rely on its own efforts for the defense of its just cause." A little while later General Almonte renewed this notification at Washington, saying in so many words that the annexation of Texas would terminate his mission, and that Mexico would declare war as soon as it received intimation of such an act. In June, 1845, Mr. Donelson, in charge of the American Legation in Mexico, assured the Secretary of State that war was inevitable, though he adopted the fiction of Mr. Calhoun, that it was the result of the abolitionist intrigues of Great Britain, which he credited with the intention "of depriving both Texas and the United States of all claim to the country between the Nueces and the Rio Grande."