Battle of Badr March, the Quraish broke camp and marched into the valley of Badr. It had rained the previous day and they struggled to move their horses and camels up the hill of 'Aqanqal. After they descended from 'Aqanqal, the Meccans set up another camp inside the valley. While they rested, they sent out a scout, Umayr ibn Wahb to reconnoitre the Muslim lines. Umayr reported that Muhammad's army was small, and that there were no other Muslim reinforcements which might join the battle. However, he also predicted extremely heavy Quraishi casualties in the event of an attack (One hadith refers to
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,