 On the vanguard were deployed a company of the "Santiago" 5th Line Regiment and 40 soldiers of the Acongagua Battalion and some artillery pieces, adding up 150 Chilean troops at the north of Barranco.Lagos' division was stationed on the vanguard because it didn't had as many losses as the others at Chorrillos.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.