the 7th again marched for Matamoros. His force did not exceed 2,300 all told, for though reënforcements had arrived at Point Isabel, they were composed of raw recruits, fit only for garrison duty, and were consequently left behind.[1] About noon on the 8th the American army arrived in front of the enemy, and both lines prepared for action. Arista's position was well chosen. In his front extended a level plain, covered with high grass, surrounded by thickets of chaparral and clumps of dwarfish trees,[2] and flanked by small pools or low swampy bottoms. His line, drawn up only two deep and more than a mile in length, extended across the southern portion of the plain. On its right, supported by a slight elevation of ground, was placed a squadron of the light cavalry regiment of Mexico; the left was composed of the 7th and 8th cavalry regiments and the presidial companies, under the command of Torrejon, and rested on a thicket of chaparral. The artillery, amounting to twelve pieces, was posted at intervals along the line. Ampudia had been ordered to move up from his position in front of the American fort, and with the 4th line regiment, a company of sappers, 200 auxiliaries of the northern towns, and two guns, occupied a position on the right of the cavalry regiments.[3]
Taylor's right wing, under Colonel Twiggs, consisted of the 5th infantry, Lieutenant-colonel McIntosh, with Ringgold's light battery, the 3d infantry, Captain Morris, with two 18-pounders under Lieutenant Churchill, and the 4th infantry, Major Allen. The left was occupied by the 1st brigade, commanded by Lieutenant-colonel Belknap, which was composed of a battalion of artillery serving as infantry, Duncan's light battery, and the 8th infantry. The train was parked in the rear under guard of a squadron of dragoons.
