Complete the following sentence: Cortés sent Pedro de Alvarado to
<unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Pedro de Alvarado <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Alvarado's army included hardened veterans of the conquest of the Aztecs, and included cavalry and artillery; there were also a great many indigenous allies from Cholula, Tenochtitlan, Texcoco, Tlaxcala, and Xochimilco.