Mexican War of Independence the Congress of Chilpancingo, which gave the insurgency its own legal framework. After the defeat of Morelos, the movement survived as a guerrilla war under the leadership of Vicente Guerrero. By 1820, the few rebel groups survived most notably in the Sierra Madre del Sur and Veracruz. The reinstatement of the liberal Constitution of Cadiz in 1820 caused a change of mind among the elite groups who had supported Spanish rule. Monarchist Creoles affected by the constitution decided to support the independence of New Spain; they sought an alliance with the former insurgent resistance. Agustín de Iturbide led the military
Latin American wars of independence movement against their colonial master, finally ended as a full-fledged civil war. Traditionally, the process is divided into three stages: Patria Vieja, Reconquista, and Patria Nueva. The first uprising against Spanish rule took place in 1809, and criollos in Ecuador set up a junta on September 22, 1810 to rule in the name of the Bourbon monarch; but as elsewhere, it allowed assertion of their own power. Only in 1822 did Ecuador fully gain independence and became part of Gran Colombia, from which it withdrew in 1830. At the Battle of Pichincha, near present-day Quito, Ecuador on May 24, 1822,