Aware of the Chilean arrival, General Orbegoso concentrated his forces in Chancay for the defense of the capital, while the Restoration Army began their advance towards Lima. Meanwhile, General Domingo Nieto had placed himself in a good defensive position, in Chacra Cerro, a quarter of a league from the Copacabana Valley (place that the restorers occupied to start the march to Lima) with a total of approximately 3,200 men. Noticing it, General Bulnes paraded to the right and went to rest in the Collico hacienda. Nieto moved south, towards the Huaca Aznapuquio position, used by the royalists in 1821. Given this, Bulnes left Collico at 11 a.m. on August 16 and deployed his forces in front of the northern positions. Peruvians, doing everything on his side so that Nieto would attack him. After 45 minutes he continued his march towards Naranjal.
