Guerrero the Plan of Iguala to end the war in 1821. The first government of an independent Mexico divided the country into twelve departments. The territory of modern Guerrero state was divided among the departments of Mexico, Puebla, Michoacán and Oaxaca. The 1824 Constitution made these entities states. In 1823, Nicolás Bravo and Vicente Guerrero petitioned for the creation of a "South State" (Estado del Sur), encompassing the lands that Guerrero had military control over during the war, but without success. However, the federal government did recognize a military district centered on Chilpancingo which Guerrero headed until he became President of
Pedro Oliverio Guerrero Bloque in the Guaviare department. As such, he got involved in drug trafficking and soon got involved in many violent vendettas over the control of territory and drug trafficking routes. He survived the war for the control of the department of Casanare between the Bloque Centauros and the paramilitary group of Héctor Germán Buitrago ("aka" Martín Llanos), and then was blamed as the author of the death of his own boss, Miguel Arroyave by Salvatore Mancuso, who declared Guerrero a military target. Following the death of Arroyave, Guerrero became one of the leaders of the divided factions of Bloque Centauros.