Costa Rica–Nicaragua San Juan River border dispute President Laura Chinchilla was criticized by former President Óscar Arias for her naïve handling of the situation. On November 18, 2010, Costa Rica filed proceedings against Nicaragua in the International Court of Justice. The complaint alleges an incursion into, occupation of and use by Nicaragua's Army of Costa Rican territory, breaches of Nicaragua's treaty obligations toward Costa Rica, and “ongoing and planned dredging and the construction of the canal (that) will seriously affect the flow of water to the Colorado River of Costa Rica, and will cause further damage to Costa Rican territory, including the wetlands and national wildlife protected
Brazil–Costa Rica relations Brazilian Presidents have visited Costa Rica (Fernando Henrique Cardoso (2000) and Luiz Inácio Lula da Silva (2009). Brazil–Costa Rica relations Brazil–Costa Rica relations refers to bilateral relations between Brazil and Costa Rica. Relations commenced in 1907, when the first Brazilian diplomats were officially accredited by the Costa Rican government. Costa Rica has an embassy in Brasilia, and Brazil has an embassy in San José. Also, Costa Rica has consulates in Curitiba, Florianópolis, Rio de Janeiro and São Paulo. Both countries are members of Organization of American States. Since the establishment of diplomatic links, four Costa Rican Presidents have visited Brazil