township, then those of Mizquic, or Little Venice, then again others which stood in alliance with us, came to beg assistance against the Mexicans; besides this, many of our Tlascallan friends longed to return home with their booty, consisting in gold, salt, and other matters, but durst not venture, on account of the insecurity of the road, as the Mexican troops were spread in all directions.
Under these circumstances, Cortes deemed that the inhabitants of Tlalmanalco and Chalco, before all others, required our more immediate assistance, that they might be enabled to form an alliance with us. The other townships might defend themselves as well as they could for the present, as it would not do to leave Tezcuco without any troops; indeed the utmost vigilance was necessary in that town. Lugo and Sandoval therefore received instructions to march out, with fifteen horse, two hundred foot, a few crossbow-men and musketeers, besides our friends of Tlascalla. They were to dislodge the Mexican troops from Chalco and Tlalmanalco, and clear the road leading to Tlascalla and Vera Cruz, along which the enemy had stationed small detachments.
Information of all this was previously conveyed to the inhabitants of Chalco by some trustworthy men of Tezcuco, that they might fall upon the Mexicans at the same moment with our troops. Nothing could have been more agreeable to the wishes of the inhabitants of Chalco, and they accordingly held themselves in readiness to rise up against the enemy at the proper time.
Sandoval composed his rearguard of five horse, an equal number of crossbow-men, and the greater part of the Tlascallans, who had all their booty with them. As the Mexicans had everywhere sent out scouts and spies to watch our movements, our present march to Chalco was no secret to them. They had therefore collected a strong body of their troops, and fell upon our rearguard, which was chiefly composed of Tlascallans. It may easily be supposed that our five horse and few