Chile and Argentina are building a tunnel through a dangerous Andean pass to boost bilateral commerce. The project will also connect Chilean ports on the Pacific Ocean with Brazilian ports on the Atlantic.
Argentina and Chile are on the road to greater trade integration. Their relationship has historically been difficult, with more downs than ups, but ties between them have been gradually warming since Argentine President Mauricio Macri came to power in December 2015. Now, the two countries are building a tunnel through a dangerous mountain pass to boost bilateral commerce and to connect Chilean ports on the Pacific Ocean with Brazilian ports on the Atlantic. War and Territory Divided by the Andes Mountains and the world's third-longest border, Argentina and Chile are more accustomed to territorial disputes with each other than to economic cooperation. Their most serious row occurred in 1978, when the countries almost went to war over the Beagle Channel, one of three navigable passages between the Atlantic Ocean and the Pacific.
