The Grand Ethiopian Renaissance Dam (GERD), Africa's largest hydroelectric project, on the Nile River in Benishangul-Gumuz, Ethiopia, in 2025. Daniel Terefe / Anadolu via fileAdd NBC News to GoogleJan. 17, 2026, 9:38 AM ESTBy Freddie ClaytonPresident Donald Trump's offer to settle a dispute over Nile River waters between Egypt and Ethiopia has drawn thanks from Egyptian President Abdel Fattah El-Sisi, as the two African nations continue their decades-long quarrel over water security. Trump said in a letter to the Egyptian leader on Friday that he was "ready to restart U. S. mediation between Egypt and Ethiopia to responsibly resolve the question of ‘The Nile Water Sharing’ once and for all.” Responding on Saturday, Egyptian leader Abdel Fattah el-Sisi said that the Nile River "represents the lifeline of the Egyptian people," saying his country supported Trump's efforts. The decades-long dispute over Nile waters escalated in September after Ethiopia launched the $5 billion Grand Ethiopian Renaissance Dam, with neighboring Egypt expressing concerns over reduced water flows downstream. Ethiopia, the continent’s second-most populous nation with more than 120 million people, aspires to become a major power exporter and sees the hydroelectric dam as central to its ambitions.