Mexico, then, did not exactly rise en masse to sweep Taylor away[1] yet the forces gathered at Matamoros could be termed respectable. Arista seems to have had about 175 artillerymen, 3500 infantry, 1100 cavalry, 425 irregular horse under General Antonio Canales and some 500 Matamoros volunteers — in all, say, 700 men including officers and ineffectives. His first brigade consisted of infantry led by García, a fine man and officer; the second, also infantry, had Vega, a brave and patriotic soldier, for commander; and the third brigade, cavalry, was under Torrejón, who possessed one excellent quality — the instinct of self-preservation. Canales could be described succinctly as a border ruffian and conspirator; and Ampudia, second in general command. was about the same thing plus a cosmopolitan varnish.[2]
After news of Taylor's intention to advance reached Matamoros, the Mexicans worked most zealously in constructing fortifications there, and by the end of April had a series of earthworks. Just above the city was erected Fort Parades, laid out in regular style for 800 men, which guarded the ferry of Las Anacuitas. Two redoubts, crossing their fires, were planted opposite Fort Brown at a distance of seven or eight hundred yards; and two or three minor forts commanded approaches. Gabions or wicker-work strengthened the embrasures, and fascines and sand — bags were freely used. No guns heavier than 12~pounders defended the works, and no platforms were laid; but in general the ordnance was of brass, well cared for though somewhat honeycombed.[3]
For a number of reasons the garrison felt confident. Through deserters and spies they knew as much as they were capable of understanding about the American army. To Mejía our general seemed "more contemptible than the lowest of Mexican tailors," and to Ampudia "an absolute nullity." The martial Worth, who did impress them, left the front at the beginning of April because Polk decided against him on the question of brevet rank. Hitchcock had been compelled to go north on sick leave For some good reason every infantry colonel and many others in high positions were absent. One regiment had not a field officer, and in another only a single company could boast a captain. Personally the officers in general were believed to lack harmony and zeal, and the men to be discontented,
