8,000 Mam warriors descended on Zaculeu from the Cuchumatanes mountains to the north, drawn from those towns allied with the city. Alvarado left Antonio de Salazar to supervise the siege and marched north to confront the Mam army. The Mam army was disorganised, and although it was a match for the Spanish and allied foot soldiers, it was vulnerable to the repeated charges of the experienced Spanish cavalry. The relief army was broken and annihilated, allowing Alvarado to return to reinforce the siege. After several months the Mam were reduced to starvation. Kaybʼil Bʼalam finally surrendered the city to the Spanish in the middle of October 1525. When the Spanish entered the city they found 1,800 dead Indians, and the survivors eating the corpses of the dead. After the fall of Zaculeu, a Spanish garrison was established at Huehuetenango under the command of Gonzalo de Solís; Gonzalo de Alvarado returned to Tecpán Guatemala to report his victory to his brother. Conquest of the Poqomam In 1525 Pedro de Alvarado sent a small company to conquer Mixco Viejo (Chinautla Viejo), the capital of the Poqomam. At the Spanish approach, the inhabitants remained enclosed in the fortified city. The Spanish attempted an approach from the west through a narrow pass but were forced back with heavy losses. Alvarado himself launched the second assault with 200 Tlaxcalan allies but was also beaten back. The Poqomam then received reinforcements, possibly from Chinautla, and the two armies clashed on open ground outside of the city. The battle was chaotic and lasted for most of the day but was finally decided by the Spanish cavalry, forcing the Poqomam reinforcements to withdraw. The leaders of the reinforcements surrendered to the Spanish three days after their retreat and revealed that the city had a secret entrance in the form of a cave leading up from a nearby river, allowing the inhabitants to come and go. Armed with the knowledge gained from their prisoners, Alvarado sent 40 men to cover the exit from the cave and launched another assault along the ravine from the west, in single file owing to its narrowness, with crossbowmen alternating with soldiers bearing muskets, each with a companion sheltering him from arrows and stones with a shield. This tactic allowed the Spanish to break through the pass and storm the entrance of the city. The Poqomam warriors fell back in disorder in a chaotic