The true origin of the Mexican war was not this march of Taylor and his troops from the Nueces to the Rio Grande, through the debatable land. The American and Mexican troops were brought face to face by the act, and hostilities were the natural result after the exciting annoyances upon the part of the Mexican government which followed the union of Texas with our confederacy.
Besides this, General Paredes, the usurping president, had already declared in Mexico, on the 18th of April, 1846, in a letter addressed to the commanding officer on the northern frontier, that he supposed him at the head of a valiant army on the theatre of action;—and that it was indispensable to commence hostilities, the Mexicans themselves taking the initiative!
We believe that our nation and its rulers earnestly desired honorable peace, though they did not shun the alternative of war. It was impossible to permit a conterminous neighbor who owed us large sums of money, and was hostile to the newly adopted state, to select unopposed her mode and moment of attack. Mexico would neither resign her pretensions upon Texas, negotiate, receive our minister, nor remain at peace. She would neither declare war, nor cultivate friendship, and the result was, that when the armies approached each other, but little time was lost in resorting to the cannon and the sword.
As soon as General Taylor reached the Rio Grande he left a command at the mouth of the river, and taking post opposite Matamoros erected a fort, the guns of which bore directly upon the city. The Mexicans, whose artillery might have been brought to play upon the works, from the opposite side of the river, made no hostile demonstration against the left bank for some time, nor did they interrupt the construction of the fort. Reinforcements, however, were constantly arriving in the city. Ampudia and Arista were there. Interviews were held between the Mexican authorities and our officers, in which the latter were ordered to retire from the soil it was alleged they