Question: What secessionist republic resulting from the overthrow of the Argentine Confederation government signed The Pact of San José de Flores?
Context: San José de Pare is a town and municipality in the Ricaurte Province, part of the department of Boyacá, Colombia.  The urban centre of San José de Pare is situated at an altitude of 1545 m in the Eastern Ranges of the Colombian Andes, and the altitude within the municipality ranges from 1200 to .  The border between San José de Pare and the department of Santander is formed by the Suárez River.  The other municipalities bordering San José de Pare are Chitaraque, Togüí, Moniquirá and Santana.  San José de Pare is along the highway from Bogotá to Bucaramanga, at 217 km from the Colombian capital. San José de Chiquitos Airport Spanish: "Aeropuerto San José de Chiquitos" , (IATA: SJS, ICAO: SLJE) is an airport serving the town of San José de Chiquitos in the Santa Cruz Department of Bolivia.  The runway is on the north edge of the town. Cajón del Maipo is a canyon located in the Andean southeastern portion of the Santiago Metropolitan Region, Chile.  It encompasses the upper Maipo River basin, where the river has entrenched itself in a narrow valley.  The zone features a series of confluent rivers such as El Volcán River, Yeso River and Colorado River, as well as other minor streams, including San Gabriel, Manzanito, Coyanco, El Sauce, El Manzano and San José.  The main locality is San José de Maipo, capital of the commune that includes all of the Andean sector of the Metropolitan Region.  The towns located here from the pre-Andean area until well within the Andes mountains are: "La Obra", "Las Vertientes" (the two latter conurbated with the city of Santiago de Chile), "El Canelo", "El Manzano", "Guayacán", "San José de Maipo", "El Melocotón", "San Alfonso", "El Ingenio", "San Gabriel y Melosas", "Los Maitenes", "Alfalfal", "El Romeral", "Queltehues", "El Volcán", "Baños Morales" and "Lo Valdés". The State of Buenos Aires ("Estado de Buenos Ayres") was a secessionist republic resulting from the overthrow of the Argentine Confederation government in the Province of Buenos Aires on September 11, 1852.  The State of Buenos Aires was never recognized by the Confederation or by foreign nations; it remained, however, nominally independent under its own government and constitution.  Buenos Aires rejoined the Argentine Confederation after the former's victory at the Battle of Pavón in 1861. The Pact of San José de Flores ("Pacto Unión San José de Flores", or "Pacto de Unión Nacional") was a treaty signed between the Argentine Confederation and the State of Buenos Aires on November 11, 1859, on the aftermath of the Battle of Cepeda.  It established guidelines for the entry of the latter into the Confederation, and Buenos Aires' acceptance of the Argentine Constitution of 1853. The San José de Guanipa Municipality is one of the 21 municipalities (municipios) that makes up the eastern Venezuelan state of Anzoátegui.  The town of San José de Guanipa (El Tigrito) is the shire town of the San José de Guanipa Municipality. San José de Flores is a station on Line A of the Buenos Aires Underground.  The station connects with Flores station on the Sarmiento Line commuter rail service. Alberto Morán (born Remo Andrea Domenico Recagno, Strevi, Alessandria, Italy, 15 March 1922 – Buenos Aires, 16 August 1997) was an Argentine tango musician.  His works at Osvaldo Pugliese's Orchestras were notable, including songs 'Pasional', 'San José de Flores' and 'El abrojito'.  He died in 1997. The San José Palace (in Spanish, Palacio San José) is the former personal residence of Justo José de Urquiza, Argentine "caudillo", general, politician and President of the Argentine Confederation from 1854 to 1860.  The Palace is now the setting of the "Justo José de Urquiza Museum and National Monument". Prudencio Ortiz de Rozas (April 28, 1800-June 1, 1857) was an Argentine general, brother of governor Juan Manuel de Rosas.  He fought at the Battle of Márquez Bridge and San José de Flores, and took part in the agreements of Rosas and Juan Lavalle in Cañuelas and Barracas.  He took part in the battle of Chascomús, that defeated the Freemen of the South.
Answer: State of Buenos Aires