Egypt has stationed an estimated 15,000 troops across three Horn of Africa countries as tensions with Ethiopia over the Nile reach their highest point in decades.

Why it matters

The 109 million Egyptians who depend on the Nile for nearly all their fresh water now face the prospect of a second, third, and fourth dam restricting flow from Ethiopia. For African nations, the dispute forces a choice between two continental powers, and for BRICS members including South Africa, it tests whether the bloc can mediate between its own partners.

The military build-up

Egypt has deployed troops to Somalia as part of a peacekeeping force and military training mission, while securing military facilities in Eritrea and Djibouti. According to The National, these deployments aim to block Ethiopian access to the Red Sea, constrain Somaliland’s port ambitions, and bolster deterrence.

Egypt has also struck arms deals and military cooperation agreements with Nigeria, the DRC, Burkina Faso, Burundi, Kenya, Algeria, and Morocco in the past year. The strategy combines hard power with economic diplomacy to isolate Ethiopia across the continent.

Ethiopia’s position

After inaugurating the Grand Ethiopian Renaissance Dam in September 2025, Ethiopia announced in late March that it would build three additional dams on the Blue Nile: Karadobi, Mabil, and Mendaya. Each is projected to cost $3.5 billion.

Addis Ababa insists the dams are development projects within its sovereign territory and rejects any binding agreement that gives downstream nations veto power over construction. Ethiopia argues the GERD has not reduced water flow to Egypt and that additional dams will follow the same operating principles.

Egypt’s response

“Egypt will not be lenient when it comes to its existential water interests,” President Abdel Fattah El Sisi told Massad Boulos, President Trump’s senior adviser on Arab and African affairs, during a meeting in Cairo this week. As recently as December, El Sisi warned that further dam construction would be met with “a firm and decisive response.”

Egypt has called for a charter binding all 11 Nile basin nations to coordinate water use and prohibit new dams without collective approval. No such agreement exists.

What happens next

President Trump has offered to mediate, but no talks have been scheduled. The African Union has been the primary diplomatic channel, though its efforts stalled after the GERD’s completion. South Africa, which holds influence in both Cairo and Addis Ababa as a BRICS partner, has not taken a public position on the latest escalation.

The next flashpoint is likely to be when Ethiopia begins construction on Karadobi, which analysts expect in the second half of 2026.