Battle of Badr Abu Jahl. For the early Muslims the battle was the first sign that they might eventually defeat their enemies among the Meccans. Mecca at that time was one of the richest and most powerful cities in Arabia, fielding an army three times larger than that of the Muslims. The Muslim victory also signaled to the other tribes that a new power had arisen in Arabia and strengthened Muhammad's position as leader of the often fractious community in Medina. The battle also established the position of Ali ibn Abi Talib as the best fighter among the Muslims, as he alone killed
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,