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
Foreign relations of Costa Rica Peace Agreement and Arias was awarded the 1987 Nobel Peace Prize for his work. Arias also promoted change in the USSR-backed Nicaraguan government of the era. Costa Rica also hosted several rounds of negotiations between the Salvadoran Government and the Farabundo Martí National Liberation Front (FMLN), aiding El Salvador's efforts to emerge from civil war and culminating in that country's 1994 free and fair elections. Costa Rica has been a strong proponent of regional arms-limitation agreements. Former President Miguel Ángel Rodríguez recently proposed the abolition of all Central American militaries and the creation of a regional counternarcotics police force in