After more than 120 years of being at odds with one another in the aftermath of the War of the Pacific, Bolivia and Chile still today lack official diplomatic relations. Exacerbating the problem is the Silala River dispute, a transboundary body of water flowing from Bolivia into Chile. While the Bolivians claim that the Silala is their own in that the flow of water is artificial, Chile asserts that it is a natural flowing river crossing an international boundary; therefore rightfully theirs to exploit according to international law. This presentation will give an overview of the dispute and use negotiation theory as a basis for exploring potential solutions.