Mexican War of Independence arm of the conspirators and in early 1821 he met Vicente Guerrero. Both proclaimed the Plan of Iguala, which called for the union of all insurgent factions and was supported by both the aristocracy and clergy of New Spain. It called for monarchy in an independent Mexico. Finally, the independence of Mexico was achieved on September 27, 1821. After that, the mainland of New Spain was organized as the Mexican Empire. This ephemeral Catholic monarchy changed to a federal republic in 1823, due to internal conflicts and the separation of Central America from Mexico. After some Spanish reconquest attempts, including
Decolonization of the Americas further wars were fought, such as the Paraguayan War and the War of the Pacific. A related process took place in what is now Mexico, Central America, and parts of North America between 1810 and 1821 with the Mexican War of Independence. Independence was achieved in 1821 by a coalition uniting under Agustín de Iturbide and the Army of the Three Guarantees. Unity was maintained for a short period under the First Mexican Empire, but within a decade the region fought against the United States over the border lands (losing bordering lands of California and Texas). Most of the heat