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
Immigration to Costa Rica number rising to 90 in 1930. Among the first Polish arrivals were Jewish immigrants Jacobo Schifter and Lollew Gudmundson, who left their country to settle in Costa Rica This became a motivator for many more Poles to go Costa Rica. The largest wave of immigration of Poles to Costa Rica was between 1933 and 1936. Xenophobia developed in Costa Rica, because most of the Poles were of Jewish origin. The Poles in Costa Rica were engaged in the home industry and small businesses. Later, around 1939, several waves of Jewish Polish families fleeing the Nazi repression arrived. Others followed after