For a number of reasons Mexico had anticipated the final outcome of the Texan difficulties, and on August 23, 1843, Bocanegra, her secretary of relations, addressed our minister on the subject. The conduct of the United States regarding that province, he wrote, has "appeared to afford grounds for doubting the sincerity and frankness" of the American authorities, and therefore, while hoping that the republic founded by Washington may be saved "from stain and dishonor," we announce hereby, "that the Mexican Government will consider equivalent to a declaration of war against the Mexican Republic the passage of an act [by the American Congress] for the incorporation of Texas with the territory of the United States; the certainty of the fact being sufficient for the immediate proclamation of wan" Such a note was of course decidedly offensive to the honor of this nation. Even Thompson felt compelled to be indignant.[1]
The following November Almonte, who then represented Mexico at Washington, informed our secretary of state that should Congress and the Executive decide upon annexation, he should consider his mission at an end. "My country," he stated, "is resolved to declare war as soon as it receives information of such an act." In reply, Upshur asserted rather sharply the right of the United States to regard Texas as an independent nation; but early in 1844 he talked the matter over with Almonte in a very frank and amicable way, and the Mexican minister concurred substantially in the annexation policy of our government. The next spring, however, be formally repeated the protests of August and November, 1843.[2]
Probably to gain time and if possible lead us on to acknowledge in some way the claim of Mexico, Almonte encouraged Calhoun, who had succeeded Upshur as the secretary of state, to believe that his government, looking upon Texas as lost, would accept a pecuniary consideration in order to minimize the misfortune; and about the middle of April, 1844, a "bearer of despatches" named Thompson left Washington with certain instructions from the secretary of state to B. E. Green, our charge at Mexico. These directed him to inform the Mexican government that, while intending no disrespect and feeling an "anxious desire" to maintain friendly relations, the United States had been compelled by a regard for our own
