Plan of Iguala, also known as Plan of the Three Guarantees ("Plan Trigarante"), was a peace treaty proclaimed on February 24, 1821, in the final stage of Mexican War of Independence from Spain. The plan attempted to establish a constitutional foundation upon which an independent Mexican Empire would be based. It took its name from the city of Iguala in the modern-day state of Guerrero.

The Plan of Iguala had three main goals, these included the establishment of Roman Catholicism, the proclamation of Mexico's independence, and social equality for all social and ethnic groups in the new country. These goals were summarized as "Religion, Independence and Unity" ("Religión, Independencia y Unión").

Mexico was to become a constitutional monarchy, modelled after the European monarchies of the time. The Plan also called for the equality of all inhabitants of Mexico, granting them equal rights in court and in every aspect of their lives.

The two main figures behind the Plan were Agustín de Iturbide (who would become Emperor of Mexico) and Vicente Guerrero, Revolutionary rebel leader and later President of Mexico. The Army of the Three Guarantees was set up to defend the ideals of the Plan of Iguala, and consisted of the unified military forces of these two men. On August 24, 1821, Iturbide and Spanish Viceroy Juan O'Donojú signed the Treaty of Córdoba in Córdoba, Veracruz, ratifying the Plan of Iguala, and thus confirming Mexico's independence.

The historic city of Iguala de la Independencia is located 102 km (63 mi) from state capital Chilpancingo in the Mexican state of Guerrero. It stands on Federal Highway 95. Iguala is the municipal seat of the municipality of the same name, located in the north-central part of the state. The city had a 2005 census population of 110,390 and the municipality 128,444. The area of the municipality is 567.1 km² (219.0 sq mi). The city is the third-largest community in the state, after Acapulco and Chilpancingo.

Among Iguala's main attractions are: the San Francisco Church, built in the 19th century and its surrounded by Tamarindo trees, and for that Iguala is also called "la Ciudad Tamarindera" (Tamarindo city) and the Lagoon of Tuxpan, characterized for its singular beauty. Iguala's local artisans manufacture gold and silver jewelry. General Vicente Guerrero was the first military leader to swear allegiance to the Mexican flag in Acatempan on March 12, 1821. The Plan de Iguala (published on February 24, 1821) ended the war of independence and was represented by a flag, called the flag of the three guarantees, which was made by José Magdaleno Ocampo. Thus the city of Iguala is called the birthplace of the modern Mexican flag. Each year a flag fair is held in Iguala. This fair is one of the most important festivities to the people of Iguala. It is celebrated with a float parade, cockfights, and handicraft exhibitions in late February. Another attraction of the City of Iguala is the Laguna of Tuxpan(Tuxpan Lake) http://www.panoramio.com/user/1411103