During the season of peace which followed Gen. Worth remained almost constantly with his regiment, which more than once changed its station; and when the contest with Mexico began, reported to Gen. Taylor at Corpus Christi. His situation here was peculiar, and he became involved in a dispute in relation to precedence and command with the then Col. Twiggs, of the 2nd dragoons. The latter officer was by several years Worth's senior in the line, and, according to the usual opinion in the army, entitled to command, though many of the most accomplished soldiers of the service thought the brevet of Worth, on this occasion at least, where the _corps d'armee_ was made up of detachments, valid as a commission. This dispute became so serious that Gen. Taylor interfered, and having sustained Col. Twiggs, Gen. Worth immediately tendered his resignation to the President. There is no doubt but that the decision in favor of Gen. Twiggs was correct, and that Worth was radically wrong in his conception of the effect of his brevet. He, however, had been brought up under the eye of Gen. Scott, who entertained the same ideas on this subject, and who, years before, under precisely similar circumstances, had resigned his commission. Gen. Worth having proceeded from the Rio Grande to Washington, the President refused to accept his resignation, and he returned at once to the army. The resignation of Worth was a most untoward circumstance, for during his absence from the army hostilities commenced, and he lost all participation in the battles of Palo Alto and La Resaca. When, after the capture of Matamoras, the army again advanced, Worth had resumed his post, and acquiesced cheerfully in the decision which had been given against him. The laurels he had not grasped on the Rio Grande were won in front of the batteries of _La Loma de la Independencia_, and in the streets of Monterey. Amid the countless feats of daring recorded by military history, none will be found to surpass his achievements in the slow, painful, but bold entry he effected through a city swarming with defenders, to the very _plaza_. For his gallantry on this occasion he received the brevet of major general, and, with the exception of Generals Scott and Taylor, is believed to be the only officer in the service who has received three war-brevets. Gen. Worth from this time became one of the national idols. When Gen. Scott assumed command of the expedition against Vera Cruz and the capital, one of his first acts was to order Gen. Worth and the remnant of his division to join him. The general-in-chief remembered the events, on the northern frontier, of 1814, and anticipated much in Mexico. He was not disappointed in this expectation, for at Vera Cruz and in the valley of Mexico, his old aid did not disappoint him, and proved that service had but matured the judgment of the soldier of Chippewa and Niagara.