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Leticia, Colombia, a town solely accessing the Amazon River, faces potential landlock due to the river's shifting course. A Colombian Navy study predicts this within five years, sparking a border dispute with Peru over Santa Rosa island. The island's formation post-1922 treaty complicates matters, with both countries claiming it based on the river's changing deepest channel. While the island's residents express peaceful coexistence, the dispute highlights the need for collaborative river management between Colombia and Peru, especially given Leticia's reliance on river trade. Bilateral talks are scheduled for September.

Prepared by Olivia Bennett and reviewed by editorial team.