Bolivian President Evo Morales sings the national anthem next to a sign reading 'The Silala is Bolivian' during a visit to the Silala springs, in Potosi department, southwestern Bolivia, 4 km away from the border with Chile, on March 29, 2016. The Silala water system is the new dispute between Bolivia and Chile and the International Court of Justice (ICJ) of The Hague declared itself competent in the matter past September.    AFP PHOTO / AIZAR RALDES / AFP / AIZAR RALDES        (Photo credit should read AIZAR RALDES/AFP/Getty Images)