Francisco I. Madero was leading a rebel army of about 800 troops when he attacked Casas Grandes. Several of Madero's men were in fact
American citizens from the border states. The garrison included just over 500 infantry, who were commanded by
Col. Agustín A. Valdez of Mexico's 18th Battalion. Gen. Madero and his men attacked the federal positions in Casas Grandes at 5:00 am. Fighting lasted for just over two hours until 7:15 am, when another Mexican government column of 562 men reinforced the already engaged 500 troops. With the reinforcing federals were two
mortars, which were quickly put into use. The battle continued for several hours more, as the federals and rebels repulsed each other's counter-attacks. By 5:00 pm the battle was over when Gen. Madero ordered the retreat of his forces. The Mexican garrison lost 13 men killed in the battle and another 23 wounded. The reinforcing column lost 24 men and 37 injured, including their commander, Col.
Samuel G. Cuellar. Both Gen. Madero and Col. Cuellar were wounded. The rebels lost 58 killed and an unknown number of wounded and 41 captured. Of the rebel casualties, 15 of the dead were Americans, along with 17 of the captured. ==Aftermath==