Battle of the Trench the confederacy of non-believers and Jews against Islam. After their expulsion from Mecca, the Muslims fought the Meccan Quraysh at the Battle of Badr in 624, and at the Battle of Uhud in 625. Although the Muslims neither won nor were defeated at the Battle of Uhud, their military strength was gradually growing. In April 626 Muhammad raised a force of 300 men and 10 horses to meet the Quraysh army of 1,000 at Badr for the second time. Although no fighting occurred, the coastal tribes were impressed with Muslim power. Muhammad also tried, with limited success, to break up
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,