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
Mexican immigration to Costa Rica and first in Hispanic America. Unlike other destinations, most Mexicans who immigrate to Costa Rica are mainly from Nuevo León, Tamaulipas, Chihuahua, Baja California and Mexico City. Despite having more cultural elements similar to the northern countries of Central America (Guatemala, El Salvador and Honduras), Mexicans in Costa Rica are quickly assimilated by the Costa Rican population. From 2010, a new wave of Mexican immigrants began coming to Costa Rica, and these are mainly young professionals, who find no opportunities in their country, migrate to the Central American country. Many others are running away from the waves of violence following