Cortés despatched Pedro de Alvarado to invade Guatemala with 180 cavalry, 300 infantry, crossbows, muskets, 4 cannons, large amounts of ammunition and gunpowder, and thousands of allied Mexican warriors. Pedro de Alvarado passed through Soconusco with a sizeable force in 1523, en route to conquer Guatemala. 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.