The African Union’s High-Stakes Mediation: Can the AU Prevent War Between Ethiopia and Eritrea?
The African Union (AU) is racing against a deteriorating security landscape in the Horn of Africa. Through its Peace and Security Council (PSC), the continental body has positioned itself as the primary mediator between Ethiopia and Eritrea, two nations where escalating tensions threaten to ignite a direct interstate war. With a complex web of proxy forces, unresolved border disputes, and competing strategic interests driving the crisis, the AU’s intervention represents a critical test of its capacity to enforce lasting peace beyond merely silencing guns.
The Unraveling of the Pretoria Agreement: A Fragile Foundation
The current impasse is rooted in the collapse of the Pretoria Agreement (CoHA), signed in November 2022 to end the devastating two-year northern Ethiopia conflict. While the Cessation of Hostilities Agreement succeeded in halting active combat between the Tigray People’s Liberation Front (TPLF) and the Ethiopian federal government, its core pillars—TPLF disarmament and the transition from an Interim Regional Administration to an elected government—were never fully implemented.
Critics, including analysts from the International Crisis Group and The Conversation, have pointed to a lack of robust oversight by the AU and the Intergovernmental Authority on Development (IGAD) during the implementation phase. This vacuum allowed spoilers to entrench. By late 2024, the TPLF leadership had fractured: hardliners opposed to the peace deal aligned with Asmara, while pragmatists aligned with Addis Ababa.
The mediation effort led by AU High Representative Olusegun Obasanjo collapsed after the TPLF accused the envoy of bias. Consequently, outright fighting resumed in September 2024, pitting a TPLF-led rebel alliance against federal forces—a development that fundamentally altered the security calculus in the region.
Diverging Strategic Interests: Why Addis Ababa and Asmara Drifted Apart
The 2020–2022 war papered over deep strategic divisions between Ethiopia and Eritrea. While they fought a common enemy in the TPLF, their endgames differed radically:
- Ethiopia (Addis Ababa): Sought to contain the TPLF’s threat to the federal constitutional order and national unity.
- Eritrea (Asmara): Pursued the total military elimination of the TPLF as an existential necessity for regime survival.
The Pretoria Agreement effectively foreclosed Asmara’s maximalist objective by legitimizing the TPLF’s political existence. This betrayal, from Eritrea’s perspective, triggered the gradual unravelling of the historic 2018 rapprochement, pushing the relationship from a “cold peace” to the current brink of hostilities.
The New Battlefield Map: Proxies, Territorial Control, and the “TPF” Factor
The military reality on the ground has shifted decisively since the September 2024 offensive. According to ACLED data and regional security monitors, the Ethiopian federal government—backed by the Tigray Peace Force (TPF), a splinter group comprised of former TPLF fighters—has re-established firm control over Mekelle and major urban centers. A federal caretaker administration is now governing the region.
Conversely, the TPLF hardliners have retreated to rural strongholds, pivoting to irregular warfare while sustaining significant losses. This shift renders the revival of the original CoHA technically obsolete; the agreement was designed for a balance of power that no longer exists. Any new AU framework must account for the federal government’s current military dominance and the TPLF’s diminished territorial control.
The Regional Proxy War: Sudan, Egypt, and the “Ring of Fire”
The Ethiopia-Eritrea tension is no longer bilateral. It has metastasized into a regional proxy conflict drawing in powerful external actors:
- Eritrea’s Proxy Strategy: Asmara is reportedly backing a coalition of seven armed groups (the TPLF plus six others from neighbouring Ethiopian regions) to pressure Addis Ababa.
- The Sudanese Armed Forces (SAF) Link: The SAF—controlling large swathes of the Sudan-Ethiopia-Eritrea border triangle—provides critical logistical terrain for this alliance. Analysis from the Horn Review highlights a deepening Eritrea-SAF military alignment.
- Egypt’s Strategic Depth: Cairo, locked in its own disputes with Ethiopia over the Grand Ethiopian Renaissance Dam (GERD) and Red Sea influence, has intensified diplomatic and military ties with Asmara, viewing Eritrea as a strategic counterweight to Addis Ababa.
This “Ring of Fire” encircling Ethiopia complicates the AU’s mandate, transforming a bilateral mediation into a multi-theater diplomatic challenge.
Why the 2000 Algiers Agreement Cannot Simply Be “Revived”
AU Commissioner Bankole Adeoye has signaled an intent to revive the Algiers Agreement alongside Pretoria. However, the 2000 deal—which ended the Badme war under the Organisation of African Unity (OAU)—carries structural flaws that make it ill-suited for 2024 realities.
The EEBC Ruling Dispute: The Eritrea-Ethiopia Boundary Commission (EEBC), established under Algiers, ruled largely based on colonial-era treaties (1900, 1902, 1908). Ethiopia ultimately rejected the “final and binding” ruling as “totally illegal, unjust, and irresponsible,” arguing it ignored the political geography of the 1952–1991 federation and the demographics on the ground. This unresolved legal grievance remains a primary driver of mistrust.
The Red Sea Imperative: Perhaps the single biggest obstacle to a simple Algiers revival is Ethiopia’s demand for Red Sea access. Addis Ababa views the 1991/1993 secession of Eritrea—which landlocked Ethiopia—as “unjust and illegal,” citing the transitional government’s failure to secure port access (specifically Assab). Prime Minister Abiy Ahmed has elevated this to an existential national security issue. Algiers, a border demarcation treaty, has no mechanism to adjudicate sovereign port access.
The AU’s Ultimate Test: Innovation or Repetition?
The African Union faces a defining moment. Its track record in the Horn shows a capacity to stop shooting (Pretoria, Algiers) but a persistent failure to build peace.
To succeed where its predecessors failed, the AU must move beyond “revival” rhetoric and negotiate a comprehensive security architecture that addresses:
- Security Guarantees: Verifiable mechanisms to end Eritrean support for Ethiopian insurgents and Ethiopian fears of encirclement.
- Political Settlement in Tigray: A inclusive framework acknowledging the new military reality (TPF/Caretaker Admin) while addressing TPLF grievances without rewarding insurrection.
- Economic Interdependence: Concrete frameworks for Ethiopian port access (Assab/Zeila) tied to Eritrean economic benefits, transforming a zero-sum dispute into a positive-sum trade relationship.
- Regional De-escalation: A parallel track engaging Sudan (SAF/RSF dynamics), Egypt, and Somalia to dismantle the proxy supply lines fueling the conflict.
Key Takeaways
| Aspect | Status / Challenge |
|---|---|
| Primary Mediator | African Union Peace and Security Council (PSC) |
| Key Agreements Cited | 2000 Algiers Agreement; 2022 Pretoria Agreement (CoHA) |
| Current Flashpoint | Eritrean support for TPLF-led proxy alliance vs. Ethiopian sovereignty/Red Sea access |
| Territorial Control (Tigray) | Federal Govt / Tigray Peace Force (TPF) control urban centers; TPLF in rural insurgency |
| External Spoilers | SAF (Sudan), Egypt (GERD/Red Sea rivalry) |
| Core AU Challenge | Moving beyond “cessation of hostilities” to “structural peace” addressing Red Sea access & proxy dynamics |
Frequently Asked Questions (FAQ)
What is the African Union’s current role in the Ethiopia-Eritrea tension? The African Union, through its Peace and Security Council (PSC), is actively mediating to de-escalate tensions between Ethiopia and Eritrea. AU Commissioner Bankole Adeoye has stated the goal is to revive the 2000 Algiers Agreement alongside the 2022 Pretoria Agreement (CoHA) to forge a consensus and prevent direct war.
Why did the Pretoria Agreement fail to bring lasting peace? The 2022 Pretoria Agreement (CoHA) failed to fully implement key provisions like TPLF disarmament and the establishment of a permanent Tigray administration. Critics cite a lack of robust oversight by the AU and IGAD during the implementation phase. The deal eventually unravelled, leading to renewed fighting in September 2024 between the TPLF and federal forces.
What are the main drivers of the current Ethiopia-Eritrea tensions? Tensions are driven by divergent interests post-Pretoria: Eritrea sought the total elimination of the TPLF, while Ethiopia aimed to contain it. Additional drivers include Ethiopia’s demand for Red Sea access (port of Assab), Eritrea’s support for a TPLF-led rebel proxy alliance, and the involvement of external actors like the Sudanese Armed Forces (SAF) and Egypt.
Why is the 2000 Algiers Agreement insufficient for the current crisis? The Algiers Agreement ended the 1998-2000 border war but established a “cold peace.” Its boundary ruling (EEBC) was rejected by Ethiopia as “illegal” for relying solely on colonial treaties while ignoring political realities. Today’s dynamics—regional proxy wars, Red Sea access demands, and new alliances—extend far beyond the border dispute Algiers addressed.
Who controls Tigray currently? Following the repulsion of the TPLF-led offensive in late September 2024, the Ethiopian federal government—alongside the Tigray Peace Force (TPF), an offshoot opposed to the TPLF—has established firm control over the region and installed a caretaker administration.
