1.0 INTRODUCTION

The Horn of Africa is entering an interconnected security crisis in which conflicts, political disputes, and maritime pressures are affecting one another. In northern Ethiopia, renewed fighting has spread across Tigray, Amhara and Afar, while Ethiopia and Eritrea have severed diplomatic relations following escalating accusations and counter-accusations (Reuters, 2026a). The African Union has urged restraint (African Union, 2026). Sudan’s war continues to draw neighbouring states into a widening security environment and generate displacement across borders (International Crisis Group, 2026a). Somalia faces pressure from political divisions, federal-state disputes and armed-group activity as the country’s security arrangements undergo further transition (European Union Agency for Asylum, 2026; International Crisis Group, 2026b). Across the Red Sea and Gulf of Aden, renewed Houthi attacks, maritime insecurity and pressure around the Bab el-Mandeb are affecting African coastal states and trade routes (Africa Center for Strategic Studies, 2026). Containment space is narrowing across the region itself, with less room ahead. The purpose of this commentary is to examine the security pressures converging across the Horn of Africa and their implications for peace, stability, mobility, and economic connectivity.

2.0 KEY ISSUES

2.1 Ethiopia-Eritrea Relations Have Broken Down

Ethiopia and Eritrea have moved from post-2018 rapprochement to diplomatic estrangement while armed conflict has resumed inside northern Ethiopia. Ethiopia closed its embassy in Asmara and expelled ten Eritrean diplomats, accusing Eritrea of hostile conduct; Eritrea responded by severing diplomatic relations (Ethiopia News Agency, 2026) (Eritrea Ministry of Information, 2026). The dispute is linked to Ethiopia’s search for Red Sea access and Eritrea’s security concerns over Ethiopia’s intentions, alongside allegations of support to armed actors (Al Jazeera, 2026). Fighting in Tigray, Amhara and Afar has added a military dimension to the dispute (Reuters, 2026a). The African Union has urged Ethiopia, Eritrea and Egypt to preserve communication and address differences through diplomatic channels (African Union, 2026). The concern is that the loss of bilateral communication is occurring alongside mobilisation, reducing the space for careful miscalculation management.

2.2 Sudan’s War Is Reshaping Regional Security

Sudan’s war is no longer contained within Sudanese territory. Fighting between the Sudanese Armed Forces and Rapid Support Forces has produced displacement into countries (UNHCR, 2026) and created relationships along the country’s borders (International Crisis Group, 2026a). Ethiopia’s border is exposed because the Blue Nile and areas connect Sudanese conflict dynamics with Ethiopia’s Benishangul-Gumuz region and the Nile basin (Reuters, 2026b). Eritrea’s relationship with Sudan’s armed forces adds another layer to Ethiopia’s northern and western security calculations (Reuters, 2026b). Egypt’s involvement in the Horn is also shaped by its dispute with Ethiopia over the Grand Ethiopian Renaissance Dam and concerns over Nile security (Al Jazeera, 2026). The result is an environment in which movements of people, weapons, political alliances and economic pressures cross national borders, making Sudan a factor in the security calculations of neighbouring states.

2.3 Somalia’s Political and Security Pressures Are Intertwined

Somalia’s security problem combines political fragmentation with persistent armed-group violence (African Union, 2026). Disagreement between the federal government and federal member states has affected constitutional arrangements, electoral processes, and control of security forces (European Union Agency for Asylum, 2026) (International Crisis Group, 2026b). Al-Shabaab remains capable of operations despite government offensives and military support, while Islamic State-Somalia retains a presence in Puntland (Council on Foreign Relations, 2026). The future of the African Union Support and Stabilization Mission in Somalia is also uncertain as external financing arrangements face pressure (International Crisis Group, 2026c). These pressures interact with Somalia’s location along the Gulf of Aden and its proximity to Yemen. The resulting problem is not confined to counter-insurgency. Political disputes affect security coordination, while armed-group activity affects state authority, movement, and maritime security across the northern Horn.

2.4 Red Sea Insecurity Is Reaching the Horn

The Red Sea and Gulf of Aden are becoming a concern for the Horn because attacks, port competition and conflicts increasingly intersect. Renewed Houthi attacks and control along parts of Yemen’s Red Sea coast have increased pressure around the Bab el-Mandeb, the passage linking the Red Sea with the Gulf of Aden (Africa Center for Strategic Studies, 2026) (United Nations, 2026). Djibouti is exposed because it hosts facilities and remains Ethiopia’s trade gateway, while insecurity in northern Ethiopia has reached areas near the Djibouti corridor (ACLED, 2026) (Al Jazeera, 2026). Reports of links between Houthi forces and Al-Shabaab add another connection across the waterway (Financial Times, 2026). The concern extends beyond shipping itself. Disruption of ports, roads, fuel routes or coastal security can transmit pressure from one theatre to another, affecting trade, humanitarian access and stability.

3.0 Conclusion

The Horn’s pressures are connected by geography, political relationships and economic corridors. Ethiopia and Eritrea have lost diplomatic channels while renewed fighting inside Ethiopia increases pressure along borders and transport routes. Sudan’s war is creating cross-border military and humanitarian effects that reach Ethiopia and Egypt. Somalia combines unresolved political disputes with an armed insurgency and an uncertain security transition. At sea, Houthi activity around the Bab el-Mandeb is adding pressure to Djibouti, coastal states, and trade routes. Taken together, these pressures reduce the ability of states to contain shocks within their territories. The region’s security challenge is therefore increasingly defined by interaction among conflicts rather than by any single theatre.

4.0 POLICY RECOMMENDATIONS

4.1 The AU Needs an Ethiopia-Eritrea Communication Channel

The African Union Commission, through its Peace and Security Department, should establish an Ethiopia-Eritrea communication channel for verified security incidents and diplomatic notifications. The channel should connect designated focal points in both foreign ministries and security institutions, with IGAD participating as an observer. Its work should include a shared incident log covering border movements, allegations of armed-group support, diplomatic expulsions, and military activity, using information confirmed by the concerned governments or independent monitors. The AU should circulate regular incident summaries to the two governments and the Peace and Security Council, while preserving confidential material. This mechanism would restore a minimum communication facility without prejudging bilateral negotiations, allowing disputed events to be clarified before they generate reciprocal military or diplomatic measures.

4.2 IGAD Needs a Djibouti Corridor Security Cell

IGAD and the Djibouti government should establish a corridor-security coordination cell linking Ethiopian and Djiboutian transport, port, customs and security authorities. The cell should maintain a shared operating picture of road closures, attacks, fuel disruptions, border restrictions, and humanitarian access along the Ethiopia-Djibouti corridor. Ethiopia’s transport authorities should provide verified movement information, while Djibouti’s port and customs authorities should report changes affecting cargo flows. IGAD should consolidate the reports into a weekly corridor assessment and activate a rapid consultation procedure when disruptions exceed agreed thresholds. The mechanism should also map alternative routes and identify priority supplies requiring protected movement. This would shift corridor management from isolated national reporting toward coordinated monitoring of a trade route on which both countries depend.

4.3 The Region Needs a Standing Diplomatic Contact Group

The African Union and IGAD should establish a Horn contact group bringing Ethiopia, Eritrea, Sudan, Egypt, Somalia and Djibouti into consultations on cross-border security pressures. The group should focus on verified incidents, military movements, displacement, armed-group activity and disruptions affecting trade corridors. Each government should nominate one senior diplomatic focal point, while the AU provides political coordination and IGAD maintains the regional incident record. Meetings should produce factual communiqués distinguishing confirmed events from allegations and disputed claims. The group should refer bilateral disputes to the appropriate governments while reserving regional questions for AU or IGAD consideration. This arrangement would create a standing forum for managing connected pressures without creating a new political authority or overriding existing national and regional mandates.

4.4 Horn Early Warning Must Track Linked Conflicts

The AU Peace and Security Department and IGAD Secretariat should establish a Horn conflict-linkage early-warning desk that tracks interactions among Ethiopia, Eritrea, Sudan, Somalia and Djibouti. The desk should combine conflict events, displacement, border incidents, diplomatic measures, corridor disruptions, and maritime-security alerts from designated national and regional sources. Each participating institution should nominate a technical focal point responsible for data verification and rapid transmission. IGAD should produce a monthly regional assessment and immediate alerts when two or more theatres show connected escalation indicators. The AU should use these assessments in Peace and Security Council briefings and preventive diplomacy. The desk should maintain a common formal indicator register, allowing decision-makers to distinguish isolated incidents from patterns that require coordinated regional attention.

5.0 References

African Union. (2026, October 1). Statement of the AU Commission on the escalating tensions between Ethiopia, Eritrea and Egypt. https://www.au.int/en/pressreleases/20261001/statement-auc-escalating-tensions-between-ethiopia-eritrea-and-egypt

Africa Center for Strategic Studies. (2026, September 22). Houthi leverage over the Red Sea escalates threats for Africa. https://africacenter.org/spotlight/2026-houthi-red-sea-threats/ 

Al Jazeera. (2026, October 2). Ethiopia, Eritrea break ties: Does the conflict risk becoming regional war? https://www.aljazeera.com/news/2026/10/2/ethiopia-eritrea-break-ties-does-the-conflict-risk-becoming-regional-war

Council on Foreign Relations. (2026, July 30). Conflict with Al-Shabaab in Somalia. https://www.cfr.org/global-conflict-tracker/conflict/al-shabab-somalia

European Union Agency for Asylum. (2026). General description of the security situation in Somalia. https://www.euaa.europa.eu/somalia-security-situation/1-general-description-security-situation-somalia

Eritrea Ministry of Information. (2026, October 1). Press release: Ethiopia’s deplorable acts of hostility. https://shabait.com/2026/10/01/press-release-ethiopias-deplorable-acts-of-hostility/

Ethiopia News Agency. (2026, October 1). Ethiopia decides to close embassy in Asmara, declares 10 Eritrean diplomats persona non grata. https://www.ena.et/web/eng/w/eng_9655770

Financial Times. (2026, September 29). US warns Houthi ties with al-Shabaab threaten Red Sea trade. https://www.ft.com/content/c81d0739-5ff6-45fb-aed5-5c5f67729925

International Crisis Group. (2026a, April 30). Divided Sudan, elusive peace. https://www.crisisgroup.org/brf/africa/sudan-egypt-saudi-arabia-united-arab-emirates-united-states/b211-divided-sudan-elusive-peace

International Crisis Group. (2026b, July 2026). New chapter, same stalemate: Somalia’s war with Al-Shabaab. https://www.crisisgroup.org/brf/africa/somalia/b212-new-chapter-same-stalemate-somalias-war-al-shabaab

International Crisis Group. (2026c, September 2026). Somalia awaits a new security order as mission drawdown looms. https://www.crisisgroup.org/cmt/africa/somalia/somalia-awaits-new-security-order-mission-drawdown-looms

UNHCR. (2026, September 25). Sudan situation map weekly regional update: 21 September 2026. https://data.unhcr.org/en/documents/details/124240

ACLED. (2026, September 28). Could Ethiopia’s fighting threaten its vital Djibouti trade corridor? https://acleddata.com/expert-comment/could-ethiopias-fighting-threaten-its-vital-djibouti-trade-corridor 

Reuters. (2026a, October 2). Why renewed fighting in Ethiopia’s Tigray risks a regional war. https://www.reuters.com/world/africa/why-renewed-fighting-ethiopias-tigray-risks-regional-war-2026-10-02/

Reuters. (2026b, October 1). Eritrea cuts ties with Ethiopia over Asmara embassy closure. https://www.reuters.com/world/africa/explosions-heard-overnight-ethiopias-capital-diplomatic-sources-say-2026-10-01/

United Nations. (2026). The United Nations Climate, Peace and Security Hub for the Horn of Africa. https://www.un.org/climatesecuritymechanism/en/united-nations-climate-peace-and-security-hub-horn-africa