The War of the Pacific redrew the map of South America and left wounds that still endure. In this episode, we reconstruct the conflict between Chile, Bolivia, and Peru through its economic and territorial roots: nitrate, guano, the Atacama Desert, fragile treaties, and the Chilean occupation of Antofagasta in 1879. The narrative follows the naval and land campaigns, the fall of Lima, the treaties that followed, and Bolivia’s loss of sovereign access to the sea. A story about natural resources, borders, power, and memory along South America’s Pacific coast.