Relations between Ethiopia and Eritrea have entered a difficult phase as political and diplomatic disagreements between the two neighbouring countries continue to intensify.

The latest tensions have raised concerns across the Horn of Africa, a strategically important region connecting Africa with the Red Sea and Middle East. Developments between Addis Ababa and Asmara are being closely watched because renewed confrontation could affect security and stability across the wider region.

Ethiopia and Eritrea have a complicated modern history. The two countries fought a major border war between 1998 and 2000 before relations improved years later. A peace agreement in 2018 brought an end to the long diplomatic confrontation and opened a period of closer cooperation.

That relationship has deteriorated again amid disagreements over regional security, the Tigray conflict and Ethiopia’s interest in obtaining reliable access to the Red Sea.

Ethiopian authorities have accused Eritrea of supporting forces opposed to the federal government. Eritrean officials have rejected allegations that they are preparing for a new war with Ethiopia and have accused Addis Ababa of creating tensions through its regional policies.

The situation has become particularly sensitive because fighting has recently intensified in Ethiopia’s northern Tigray region. Federal forces have moved against forces associated with the Tigray People’s Liberation Front, while political disagreements surrounding the implementation of the earlier peace agreement remain unresolved.

Ethiopia’s search for access to the Red Sea is another major factor in relations between the two countries. Ethiopia lost direct access to the sea when Eritrea became independent in 1993. Since then, the issue has periodically returned to the centre of Ethiopian foreign policy.

Ethiopian officials have argued that access to a seaport is important for the country’s economy because Ethiopia is one of Africa’s largest landlocked nations. Eritrea, however, has strongly opposed any arrangement that could threaten its territorial sovereignty.

The diplomatic deterioration could have consequences for neighbouring countries as well. The Horn of Africa already faces conflicts and political instability, including the continuing crisis in Sudan and security challenges in the Red Sea region.

International and regional organizations have urged Ethiopia and Eritrea to exercise restraint. Any significant military escalation between the two countries could create additional humanitarian and security challenges in an already fragile region.

The African Union has a particular interest in preventing another major interstate conflict in the Horn of Africa. Regional diplomatic efforts could therefore become increasingly important if tensions continue to rise.

For Ethiopia, the priority remains maintaining national stability while addressing security concerns in Tigray and pursuing economic access to international trade routes. For Eritrea, protecting its territorial security and sovereignty remains a central issue.

The current situation remains fluid, and the full extent of the diplomatic deterioration is still developing. Whether the two governments move toward dialogue or further confrontation could have significant implications for the political future of the Horn of Africa.