Bolivia sends approximately 70 percent of its foreign trade through ports in northern Chile, having been landlocked since losing its Pacific coastline in the 1879-84 War of the Pacific

From the articleChile’s president makes first state visit to Bolivia in 71 years as region shifts rightAlso in Chile president makes first state visit to Bolivia in 71 years as region shifts right, Chile's president makes first state visit to Bolivia in 71 years as region shifts right, Chile's president makes first state visit to Bolivia in 71 years as region shifts right