Muhammad the Muslim force for battle. Muhammad led his force outside to the mountain of Uhud (the location of the Meccan camp) and fought the Battle of Uhud on 23 March 625. Although the Muslim army had the advantage in early encounters, lack of discipline on the part of strategically placed archers led to a Muslim defeat; 75 Muslims were killed including Hamza, Muhammad's uncle who became one of the best known martyrs in the Muslim tradition. The Meccans did not pursue the Muslims, instead, they marched back to Mecca declaring victory. The announcement is probably because Muhammad was wounded and
Army of the North victory. The battle was favorable to Balcarce even though he again had numerical inferiority (800 royalist against 600 rebels, and in Cotagaita 2,000 royalists against 1,100 rebels). Balcarce earned the rank of brigadier, and the confidence to advance towards the Desaguadero River, border of the viceroyalty in colonial times. Due to internal disagreements Castelli had to dismiss Güemes and his gaucho soldiers. The royalist defenses were left in charge of general José Manuel de Goyeneche, who met with Castelli and signed an armistice to last for forty days from 16 May. The army moved from the encampment at La Laja,