 At this time, in the Peruvian lines, Gen. Pedro Silva made a formal review of his troops to rise the morale, which was very low due to the impact of the defeat at Chorrillos two days ago.This movement in the defensive lines made the Chilean officers became suspicious and strengthened their advanced troops (at 400 meters of the Peruvian lines at the north bank of the Surco river).The Navales and 5th Line Regiment were disployed to the right and to the left of the railroad connecting Barranco and Miraflores.