by Oribe at the battle of Arroyo Grande. Rivera's project never got off the ground, and he was forced to stand in Montevideo against Oribe's siege. Brazil proposed a military alliance to Rosas: Rosas would take Uruguay with Brazilian support, and Brazil would take the Riograndese Republic with Argentine support. Tomás Guido, Argentine representative in Brazil, supported the proposal, but Rosas rejected it. Rosas thought that such treaty would violate the Uruguayan sovereignty, and that it would be null if Oribe was not part of it. Honório Carneiro Leão, representative of Brazil, did not accept Rosas's alternative proposal, and Brazil distanced from Argentina. International context Britain did not have great interests at stake in Buenos Aires. The purpose of the war was to foster the Entente cordiale with France, so as to make possible later joint military operations elsewhere, such as the Opium War or the protection of the independence of the Republic of Texas. The British interests in South America grew when Texas was finally annexed by the United States. Texas supplied Britain with cotton, and the British calculated that it would be easier to secure cotton sources in South America (such as Paraguay) rather than waging war with the powerful United States. Britain republished many Uruguayan libels against Rosas, such as the Blood tables, so that people supported military action against him. As there was a strong British religious tradition, Rosas was accused of replacing the crosses of churches with his portrait, persecuting religion, and killing priests; and that he may have murdered his wife Encarnación Ezcurra and had incestuous relations with his daughter. Two influential French politicians of the time were the foreign minister François Guizot and the nationalist Adolphe Thiers. Thiers proposed that France should continue the hostilities against Rosas. He explained his opinion with three main reasons and an accessory one: humanity, patriotism, international law and expansion of commerce. He viewed Rosas as a ruthless dictator, to justify the humanitarian reason. Although Montevideo was not a French colony, he referred to it as such due to its high population of French Basques. He considered that Rosas would be in contravention of the 4th article of the Mackau-Arana treaty (in which the Confederation recognized the independence of Uruguay) by attempting to impose an Argentine president on it. The expansion of commerce was not mentioned as a main reason, as Rosist protectionist policy limited but did not