The Quadrilateral Treaty was a pact between the Argentine provinces of Buenos Aires, Santa Fe, Entre Ríos and Corrientes, signed on 25 January 1822. The treaty was intended to be an offensive-defensive pact between the signatories, in front of an attack by Luso-Brazilian invasion from the Banda Oriental (present-day Uruguay), which was seen as very probable. It also wanted to establish peace after the defeat of the caudillo from Entre Ríos, Francisco Ramírez, who in 1821 had invaded Santa Fe and Córdoba Provinces, without success.
The pact established:
The alliance of Buenos Aires with the provinces of the Argentine littoral, insured through government subsidies, gave an opportunity to Buenos Aires of neutralizing the Governor of Córdoba Juan Bautista Bustos, who awaited the country's reorganization in a National Constitution since 1825.
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