During his absence the Mexicans crossed the river again, and attacked the fort. General Taylor started early in the morning, admonished by the sound of the guns at Fort Brown that assistance was needed there. Lieutenant Grant was in the column, with his regiment. At noon we came in sight of the Mexicans drawn up in order of battle at Palo Alto. General Taylor immediately formed his line for the conflict, and for the first time in thirty-one years an American army was drawn up before a civilized foe. Lieutenant Grant was there—in the first battle of the last half century, as he was in the last one.
Taylor formed his line half a mile from the enemy, and the battle was fought mainly with artillery. Night gathered over the combatants in the same relative position. While the Mexicans had been fearfully slaughtered by the weight and range of the American guns, the loss on our side was insignificant in comparison with theirs. The enemy retired in the darkness, and we encamped on the field of battle.
Compared with the mighty actions of the late Rebellion, or even with those which followed it in the Mexican war, Palo Alto was a trivial affair, and I dwell upon it only as the occasion in which the illustrious soldier first drew his sword in actual conflict, in which he was first under the fire of an enemy. This was his baptismal battle, and there is no difficulty in believing that he behaved like a true soldier.
We slept upon the field, as we have slept upon many a field since, but only to awake to another and fiercer battle the next day. The enemy had taken up a strong position near Resaca de la Palma, three miles from Fort Brown. Whatever may be said of the Mexicans, judged by the measure of their success in the war of 1846, they were by no means a contemptible foe. They were not deficient in military science, and they stood their ground bravely, as the vast numbers of them slain in the various battles fully attest. At Resaca they were well posted in a ravine, with their flanks protected by an impenetrable jungle of scrub oaks. The battle opened with artillery, but the enthusiasm of both sides would not permit it to be continued at long range, and infantry and cavalry made some handsome charges. The Mexicans fought with dogged courage; but, in spite of this, and of the fact that they were three to our one, they were utterly defeated and routed.
The Mexican artillery was handled by General La Vega, a brave and skilful fellow, and did us much mischief. Taylor ordered Captain May, of the dragoons, to charge upon this battery, which was so gallantly done that the feat has passed into history. He was supported by the infantry, and the entire Mexican line was shattered by the onslaught. The demoralized foe fled in terror, leaving their guns and ammunition on the field, a prey to our conquering arms. La Vega, who had no talent for running away, was taken prisoner. When the night of the second battle-day closed upon the scene, not a single Mexican soldier was to be found on the east side of the Rio Grande.
General Taylor fought his battles thoroughly, and in this school of conflict Lieutenant Grant took his first lessons in actual warfare. His quaint criticism that the army of the Potomac "did not fight its battles through" conveys a vivid impression of his views on this important subject. After blood and treasure have been freely expended to procure a military success, nothing can excuse the commander from following out the results of victory to the utmost extent within his means. This was the practice of "Old Rough and Ready" in the Mexican war. He "fought his battles through," as Resaca, Monterey, and Buena Vista fully testify, thus making a wise and economical use of the resources intrusted to his keeping. Grant is a greater general than Taylor ever was, and it would not be respectful to say that he followed the example of the worthy veteran; but the experience of this period doubtless assisted in the preparation of the man for the gigantic work he was to accomplish eighteen years after.
Three months later in the year the army of General Taylor crossed the Rio Grande, and marched upon Monterey. On the 20th of September he appeared before the city with an army of six thousand men, to attack a position strong in its natural and artificial defences, and garrisoned by ten thousand troops. The conditions of successful warfare, as usually recognized by prudent commanders, were nearly reversed against the American army. Instead of having two or three to one of the garrison in force, they were nearly outnumbered in this numerical ratio. But the attack was promptly commenced, not by the slow and tedious process of regular siege operations, but by a direct assault, without wasting a single day. The battle opened on the morning following the arrival of the troops, and continued with unabated spirit during the day. Several fortified heights were carried before night, and the soldiers rested only to renew the assault the next day.
The Bishop's Palace, a strongly-fortified position in the rear of the town, and the last to yield, was gallantly carried by the force under the brave General Worth. On the third day of the fight the lower city was stormed with the most tremendous fury, the troops burrowing through the stone walls of the houses in their progress, and the defenders of the place were all driven within the citadel of the town before night again settled down upon the unequal fight. Penned in by their furious assailants, the Mexicans had no hope in continuing the resistance after the misfortunes which overtook them. Ampudia, the general in command of the city, submitted a proposition for terms which resulted in the surrender and evacuation of the town.
Thus, in three days, Monterey, a city so strong in position, and so well defended that its commander might have confidently defied a besieging army of double the force of that which sat down before its walls, was carried by repeated assaults. This was another of the training fields of Lieutenant Grant. The walls of the houses within the city were strongly built, affording ample defensive positions from which the Mexican soldiers could safely annoy the Americans. From the windows they fired down upon their assailants, disputing the possession of each dwelling with the most dogged tenacity.