Beyond what they confirmed about the president’s rhetorical rashness, they also revealed what has been wrong about the US approach to the ongoing dispute over the Blue Nile’s waters and why a reset is badly needed.
For Ethiopia, Trump’s remarks were the latest in a string of steps that have convinced Addis Ababa that Washington, far from being an honest broker in resolving GERD-related tensions between it and its downstream neighbours, seeks to squeeze it into submission.
The other most notable one was the partial cut in US aid following Ethiopia’s decision to impound water in the dam’s reservoir without agreement from Egypt or Sudan, the downstream states. A retaliatory measure Trump was quick to brag about in his call with Israeli Prime Minister Netanyahu, Sudanese Prime Minister Abdalla Hamdok and military council leader Fattah al-Burhan.
READ MORE US decision to halt aid to Ethiopia over GERD risks complicating talks
Regardless of what one might think of Ethiopia’s stance, Washington’s words and deeds have made it hard for Addis Ababa to give ground, and harder still for the US to play a role in persuading it to do that.
The US posture is all the more illogical since, with the initial filling of the reservoir, the giant hydropower project is now more than ever a fact on the ground. And it is all the more counterproductive because a solution that meets all sides’ needs remains realistic, especially as Cairo, Khartoum and Cairo on Tuesday 27 October resumed tripartite negotiations under African Union auspices.
Dispute is not a simple or new affair
The dispute over the dam has old roots and is not a black and white affair. It traces back to a 1959 treaty between Egypt and Sudan that allocated use of the Nile’s waters to those two countries alone.
LISTEN GERD: 1959 Egypt/Sudan treaty -‘The worst agreement Khartoum could have signed’
For decades, Ethiopia has seen these arrangements as preventing it from using the Blue Nile to catalyse its economic development, while Egypt in particular has seen them as both immutable and existential.
All sides have legitimate concerns.
READ MORE Egyptian farmers living in the shadow of Ethiopia’s dam
Ethiopia views building the GERD as a sovereign right and integral to its development. Egypt worries that the dam will create shortages on the river it relies on to meet the vast majority of its own water needs. Sudan fears it will suffer if the facility is not operated in concert with dams on its territory.
But these interests are far from irreconcilable.
Benefits from GERD
Managed wisely and cooperatively, the GERD could reduce flooding and boost irrigated agriculture in Sudan, alongside Egypt and others in the Gulf and East Africa. Sudan could also benefit from the dam’s plentiful electricity generation.
It could help mitigate regional drought made more likely by climate change because its large reservoir could supplement any meagre flows. In short, even during tough times, the dam could generate Ethiopia electricity while also providing water to its stricken neighbours.
READ MORE Grand Ethiopian Renaissance Dam: Catalyst for basin-wide water cooperation?
The parties have already reached consensus on several important aspects in talks now overseen by the African Union and observed by the EU, US and others. In particular, they agree on how the dam should be filled and operated when rainfall is sufficient. They disagree, however, on aspects of how to manage a prolonged dry spell, how to resolve disputes, and how to factor into any agreement potential future upstream Ethiopian projects that would reduce inflows to the dam.

Egypt Ethiopia Dam Dispute © This satellite image taken Thursday, May 28, 2020, shows the Grand Ethiopian Renaissance Dam on the Blue Nile river in the Benishangul-Gumuz region of Ethiopia. (Maxar Technologies via AP, File)
One can see the contours of what a deal might look like. As a first step, the parties could agree to minimum downstream releases from the GERD, to be adjusted by consensus if Ethiopia made plans to extract water upstream; they would ask a third-party to verify all data on rainfall, river flow and reservoir releases; and they would commit to sending any disputes to a conciliation commission.
Subsequently, and together with all riparian states, they could revive a stalled multilateral treaty-negotiation process designed to equitably allocate the river’s waters and jointly manage the basin. At that stage, and with a comprehensive accord in place, Ethiopia would sign up to Egypt’s and Sudan’s demand for binding arbitration as the last stage in settling any unresolved disputes. Achieving all that will require bringing the parties to the table and encouraging them to stay there and act constructively.
Whether Trump wins a second term or Vice-President Biden earns a first one, the US will only be able to play that part if it resets its approach. It should join the AU and the EU in urging the parties to view the dam as a cornerstone of regional economic integration, and help them see it that way by suggesting they would support the transmission lines and power deals, as well as the joint agricultural investments necessary to turn the dam into a collective asset for all.
READ MORE Ethiopia/Egypt/Sudan: Trust, linkage, and cooperation can end dam dispute
The US could also help by bringing Saudi Arabia and the United Arab Emirates on board; not only could they bankroll investments, but they could also benefit from increased Sudanese agricultural production.
Bottom line
With or without President Trump’s careless approach, Nile issues could remain contentious for years to come unless the parties change course. It’s time for the US to resume the role of effective mediator and convince them that they still stand to benefit significantly if they can reach a deal.
A compromise is within reach. The parties should not let it slip downstream, nor allow Washington’s blundering interventions to wash it away.
Understand Africa's tomorrow... today
We believe that Africa is poorly represented, and badly under-estimated. Beyond the vast opportunity manifest in African markets, we highlight people who make a difference; leaders turning the tide, youth driving change, and an indefatigable business community. That is what we believe will change the continent, and that is what we report on. With hard-hitting investigations, innovative analysis and deep dives into countries and sectors, The Africa Report delivers the insight you need.