Eritrean–Ethiopian War
Part of the Eritrean–Ethiopian border conflict
Map of the disputed territories on the Eritrea–Ethiopia border where vast majority of the fighting took place
Date 6 May 1998 – 18 June 2000 (2 years, 1 month, 1 week and 5 days) Location Eritrean–Ethiopian border Result Ethiopian military victory[1][2][3][4] Eritrean diplomatic victory[5][6][7] Algiers Agreement (2000) Most of the disputed territory awarded to Eritrea by the Permanent Court of Arbitration in 2002[8] Ethiopian occupation of disputed territories and the border town of Badme until the Tigray War Refugee displacement and humanitarian crises of Eritreans and Ethiopians Deployment of UN Peace-keeping troops along disputed border region[9] Conflict over the border continues until 2018[10] Territorial changes Final and binding border delimitation by the International Court of Arbitration[11]
Belligerents
Eritrea	Ethiopia
Commanders and leaders
Isaias Afewerki[12] Sebhat Ephrem Filipos Woldeyohannes	Meles Zenawi Tsadkan Gebretensae[12] Samora Yunis[16]
Units involved
EDF Eritrean Army ERAF	ENDF Ethiopian Ground Forces ETAF
Strength
200,000– 300,000[17]	300,000–350,000[17]
Casualties and losses
19,000[18]–67,000 killed[19] 2,600 captured[20] 4 MiG-29s[21] 1 Aermacchi MB-339[22] Other estimates: 150,000 killed[23][24]	34,000[19]–60,000 killed[25] 1,100 captured[26] 3 MiG-21s 1 MiG-23 1 Su-25 2+ Mi-35s[27] Other estimates: 123,000 killed[28][29]
98,217 killed overall (UCDP estimate)[30] 70,000[31]–100,000[32] killed overall (ICG estimate) 300,000 killed overall (other estimates)[17]

The Eritrean–Ethiopian War,^[a] also known as the Badme War,^[b] was a major armed conflict between Ethiopia and Eritrea that took place from May 1998 to June 2000.

After Eritrea gained independence from Ethiopia in 1993, relations were initially friendly. However, disagreements about where the newly created international border should be caused relations to deteriorate significantly, eventually leading to full-scale war.^[10][33] According to a 2005 ruling by an international commission, Eritrea broke international law and triggered the war by invading Ethiopia.^[34] By 2000, Ethiopia held all of the disputed territory and had advanced into Eritrea.^[35] The war officially came to an end with the signing of the Algiers Agreement on 12 December 2000;^[36] however, the ensuing border conflict would continue on for nearly two decades.

Eritrea and Ethiopia both spent considerable amount of their revenue and wealth on the armament ahead of the war, and reportedly suffered between 70,000–300,000 deaths combined as a direct consequence thereof, excluding an indeterminate number of refugees.^{[31][37][38][17]} The conflict ultimately led to minor border changes through final binding border delimitation overseen by the Permanent Court of Arbitration.

After the war ended, the Eritrea–Ethiopia Boundary Commission, a body established by the Algiers Agreement, concluded that Badme, the disputed territory at the heart of the conflict, belongs to Eritrea.^[39] On 5 June 2018, the ruling coalition of Ethiopia, headed by Prime Minister Abiy Ahmed, agreed to fully implement the peace treaty signed with Eritrea in 2000,^[40] with peace declared by both parties in July 2018, twenty years after the initial confrontation.^[10]

From 1961 until 1991, Eritrea fought a 30-year war of independence against Ethiopia; during this period, the Ethiopian Civil War also began on 12 September 1974, when the Derg staged a coup d'état against Emperor Haile Selassie. Both conflicts lasted until 1991 when the Ethiopian People's Revolutionary Democratic Front (EPRDF) – a coalition of rebel groups led by the Tigray People's Liberation Front (TPLF) – overthrew the Derg government, and installed a transitional government in the Ethiopian capital Addis Ababa. During the civil war, the groups fighting the Derg government had a common enemy, so the TPLF allied itself with the Eritrean People's Liberation Front (EPLF).^[41]

In 1991, as part of the United Nations-facilitated transition of power, it was agreed that the EPLF should set up an autonomous transitional government in Eritrea and organize a referendum. This referendum was held in April 1993, and the vote was overwhelmingly in favour of independence, leading to the establishment of a new state joining the United Nations.^[12][42][43] Also in 1991, the transitional government of Eritrea and the TPLF-led transitional government of Ethiopia agreed to set up a commission, to look into any problems that arose between the two former wartime allies over the foreseen independence of Eritrea.^[44] This commission was not successful, and during the following years relations between the governments of the two sovereign states deteriorated.^[42] Eritrea soon began a practice of forcibly expelling Ethiopians from its territory. As early as 1991, about 30,000 wives and children of Ethiopian soldiers stationed in Eritrea were bused by Eritrean forces across the border, and crowded into camps in Adigrat, Adwa and Axum, with the EPLF telling relief officials to expect 150,000 more Ethiopian civilians. Reportedly, many of the deportees were people who were being dismissed from their jobs, some of them longtime residents of Eritrea.^[45]

Determining the border between the two states also became a major source of conflict. In November 1997, a committee was set up to try to resolve it. Before Eritrean independence, the border had been of minor importance, as it was only a demarcation line between federated provinces, and initially, the two governments tacitly agreed that the border should remain as it had been immediately before independence. Upon independence, however, the border became an international frontier, and the two governments could not agree on where, specifically, the border should be demarcated;^[42] they looked back to colonial-era treaties between the Italian Empire and Ethiopia as a basis for the precise boundaries between the states. Problems then arose, because they could not agree on the interpretation of those agreements and treaties,^[46] and it was not clear, under international law, how binding colonial treaties were on the two states.^[47][48]

Writing after the war had finished, Jon Abbink postulated that President Isaias Afewerki of Eritrea realised that his influence over the government in Ethiopia was slipping, and "in the absence of a concrete border being marked," calculated that Eritrea could annex Badme.^[49][50] If successful, this acquisition could have been used to enhance his reputation and help maintain Eritrea's privileged economic relationship with Ethiopia. However, because Badme was in Tigray Province – the region from which many of the members of the Ethiopian government originated (including Meles Zenawi, the Ethiopian prime minister) – the Ethiopian government came under political pressure from within the EPRDF, as well as from the wider Ethiopian public, to meet force with force.^[49]

After a series of armed incidents in which several Eritrean officials were killed near Badme,^[51] on 6 May 1998,^[52] a large Eritrean mechanized force entered the Badme region along the border of Eritrea and Ethiopia's northern Tigray Region, resulting in a firefight between the Eritrean soldiers and a Tigrayan militia and Ethiopian police they encountered.^[51][53][54] On 13 May 1998, Ethiopia, in what Eritrean radio described as a "total war" policy, mobilized its forces for a full assault against Eritrea.^[55] The Claims Commission found that this was, in essence, an affirmation of the existence of a state of war between belligerents, not a declaration of war, and that Ethiopia also notified the United Nations Security Council, as required under Article 51 of the UN Charter.^[56]

The fighting quickly escalated to exchanges of artillery and tank fire, leading to four weeks of intense fighting. Ground troops fought on three fronts. On 5 June 1998, the Eritrean Air Force attacked an elementary school in Mekelle that killed 49 of the students and their parents and the neighbors that came to help immediately.^[57] Four more people died after reaching hospital. The victims ranged from a three-month-old baby to a 65-year-old man.^[57] The Ethiopian Air Force launched air attacks on the airport in Asmara as a retaliation. Eritreans also attacked the airport of Mekele. These raids caused civilian casualties and deaths on both sides of the border.^[58][59][60] The United Nations Security Council adopted Resolution 1177 condemning the use of force and welcomed statements from both sides to end the air strikes.

There was then a lull as both sides mobilized huge forces along their common border and dug extensive trenches.^[61] Both countries spent several hundred million dollars on new military equipment.^[62] This was despite the peace mediation efforts by the Organization of African Unity (OAU) and a US/Rwanda peace plan that was in the works. The US/Rwanda proposal was a four-point peace plan that called for withdrawal of both forces to pre-June 1998 positions. Eritrea refused, and instead demanded the demilitarization of all disputed areas along the common border, to be overseen by a neutral monitoring force, and direct talks.^[63][64]

With Eritrea's refusal to accept the US/Rwanda peace plan, on 22 February 1999, Ethiopia launched a massive military offensive to recapture Badme. Tension had been high since 6 February 1999, when Ethiopia claimed that Eritrea had violated the moratorium on air raids by bombing Adigrat, a claim it later withdrew.^{[65][unreliable source?]} Surveying the extensive trenches the Eritreans had constructed, Ethiopian General Samora Yunis observed, "The Eritreans are good at digging trenches and we are good at converting trenches into graves. They, too, know this. We know each other very well".^[66]

Ethiopia's offensive, codenamed Operation Sunset, began with an air attack on Assab airport by four Ethiopian fighter jets, followed by a massive artillery barrage against Eritrean positions on the Tsorona front, which was meant as a diversion to make the Eritreans prepare for an Ethiopian offensive against eastern or southern Eritrea. The following day, the Ethiopian ground attack began. Three Ethiopian divisions broke through the Eritrean defenses in the Biyukundi area and then advanced toward Dukambiya, 20 kilometers southeast of Barentu, before turning east and hitting an Eritrean division north of Badme in the flank, taking the Eritreans by surprise. The Eritrean division was almost totally destroyed and the Ethiopians continued their advance toward Dukambiya. Realizing that they were about to be cut off, the remaining Eritrean units deployed in the Badme area hastily retreated, abandoning nearly 100 kilometers of fortifications and most of their heavy weapons. Ethiopian Mi-24 helicopter gunships attacked the fleeing Eritreans with rockets.^[67]

After five days of heavy fighting, Ethiopian forces were 10 kilometers (six miles) deep into Eritrean territory. Eritrea accepted the OAU peace plan on 27 February 1999.^[68][69] While both states said that they accepted the OAU peace plan, Ethiopia did not immediately stop its advance, because it demanded that peace talks be contingent on an Eritrean withdrawal from territory occupied since the first outbreak of fighting.^[70] The widespread use of trench warfare by both sides resulted in comparisons of the conflict to the trench warfare of World War I.^[61] According to some reports, trench warfare led to the loss of "thousands of young lives in human-wave assaults on Eritrea's positions".^[71]

On 16 May, the BBC reported that, after a lull of two weeks, the Ethiopians had attacked at Velessa on the Tsorona front-line, south of Eritrea's capital Asmara and that after two days of heavy fighting, the Eritreans had beaten back the attack, claiming to have destroyed more than 45 Ethiopian tanks; although not able to verify the claim, which the Ethiopian Government dismissed as ridiculous, a BBC reporter did see more than 300 dead Ethiopians and more than 20 destroyed Ethiopian tanks.^[72] In June 1999, the fighting continued with both sides in entrenched positions.^[73]

Proximity talks broke down in early May 2000, with Ethiopia accusing Eritrea of imposing "unacceptable conditions."^[74][75] On 12 May, Ethiopia launched a massive combined arms offensive on multiple fronts involving four armored divisions and 22 infantry divisions, extensive artillery and close air support. The Ethiopians used pack animals such as donkeys for logistical support for their infantry, and, due to their cumbersome logistical chain, primarily relied on infantry assaults to capture Eritrean positions. They held their tanks in reserve, then brought them forward to secure positions captured by the infantry. Ethiopian forces initially struggled to exploit the gaps they had torn in the Eritrean positions, often at great cost in frontal assaults against Eritrean trenches.^[76][77] The Ethiopians broke through the Eritrean lines between Shambuko and Mendefera, crossed the Mareb River, and cut the road between Barentu and Mendefera, the main supply line for Eritrean troops on the western front of the fighting.^[78][79]

Ethiopian sources stated that on 16 May, Ethiopian aircraft attacked targets between Areza and Maidema, and between Barentu and Omhajer, and that all aircraft returned to base, while heavy ground fighting continued in the Da'se and Barentu area and in Maidema. The next day, Ethiopian ground forces (with air support) captured Da'se. Barentu was taken in a surprise Ethiopian pincer movement on the Western front. The Ethiopians attacked a mined but lightly defended mountain, resulting in the capture of Barentu and an Eritrean retreat.^[77] Fighting also continued in Maidema.^[80] Also on 17 May, due to the continuing hostilities, the United Nations Security Council adopted Resolution 1298 imposing an arms embargo on both countries.^[81]

By 23 May, Ethiopia claimed that its "troops had seized vital command posts in the heavily defended Zalambessa area, about 100 km (60 mi) south of the Eritrean capital, Asmara".^[75] But the Eritreans claimed they withdrew from the disputed border town of Zalambessa and other disputed areas on the central front as a "'goodwill' gesture to revive peace talks"^[82] and claimed it was a 'tactical retreat' to take away one of Ethiopia's last remaining excuses for continuing the war;^[83] a report from Chatham House observes, "the scale of Eritrean defeat was apparent when Eritrea unexpectedly accepted the OAU peace framework."^[84] Having recaptured most of the contested territories – and having learned that the Eritrean government would withdraw from any other territories it occupied at the start of the conflict, in accordance with a request from the OAU – Ethiopia declared the war was over on 25 May 2000.^[3][85][86]

On 18 June 2000, the parties agreed to a comprehensive peace agreement and binding arbitration of their disputes under the Algiers Agreement. On 31 July 2000, the United Nations Security Council adopted Resolution 1312 and a 25-kilometer-wide Temporary Security Zone (TSZ) was established within Eritrea, patrolled by the United Nations Mission in Ethiopia and Eritrea (UNMEE) from over 60 countries. On 12 December 2000 a peace agreement was signed by the two governments.^[36]

Eritrea officially claimed that 19,000 Eritrean soldiers were killed during the conflict;^[87] Ethiopia claims to have lost between 34,000–60,000 and killed up to 67,000 Eritrean soldiers.^[19][25] Meanwhile, Voice of the Democratic Path of Ethiopian Unity, a clandestine political opposition group, alleged that 123,000 Ethiopians were killed,^[28] while other reports place the number of Eritrean deaths at around 150,000.^[17] Most international reports put the total war casualties from both sides as being around 70,000,^[88] but some analysts within the region suggested that the overall death toll may have been as high as 300,000.^[17] All these figures have been contested, and other news reports simply state that "tens of thousands" or "as many as 100,000" were killed in the war.^[32][38]

Eritrea accused Ethiopia of using "human waves" to defeat Eritrean trenches. But according to a report by The Independent, there were no "human waves" because Ethiopian troops instead outmanoeuvred and overpowered the Eritrean trenches.^[89]

The fighting led to massive internal displacement in both countries as civilians fled the war zone – by the end of May 2000, Ethiopia occupied about a quarter of Eritrea's territory, displacing 650,000 people, and destroying key components of Eritrea's infrastructure.^[90]

The Eritrean government forcibly expelled an estimated 70,000 Ethiopians according to the report by Human rights Watch.^[91] Ethiopia expelled 77,000 Eritreans and Ethiopians of Eritrean origin it deemed a security risk, thus compounding Eritrea's refugee problem.^[92][93][94] The majority of those were considered well off by the Ethiopian standard of living. They were deported after their belongings had been confiscated.^[95] Ethiopians living in Eritrea were interned, and thousands of others were deported. After the retaliatory bombings of Asmara Airport by Ethiopia on 5 and 6 June 1998, many Ethiopians working in Eritrean towns were sacked, apparently as a reprisal, and subsequently lost their rented housing through losing their means of income or, in some cases, by being evicted for being Ethiopian. Many Ethiopians were forced to sleep on the streets outside the Ethiopian embassy in Asmara, in church compounds or elsewhere according to a report by Amnesty International. In July 1998, Ethiopia alleged that up to 60 Ethiopians had died in Assab after being locked in a shipping container by the Eritrean police in daytime temperatures of over 40C.^[96] According to Human Rights Watch, detainees on both sides were subject in some cases to torture, rape, or other degrading treatment.^[97] This was believed to be a continuation of the 1991–93 expulsions of 125,000 Ethiopians from Eritrean territory.^[98]

According to the Coalition to Stop the Use of Child Soldiers, there were "credible reports" that the Ethiopian armed forces used thousands of children during the war:

Testimonies of former child soldiers, NGOs and journalists provide evidence of child deployment on the front lines and in massive waves across mine fields... Recruitment reportedly focused on Oromos and Somalis... and on grades 9 to 12 of secondary schools.^[99]

Children were also forcibly recruited in groups from public places. The lack of a functioning birth registration system has made it difficult to estimate the number of children affected, but it is clear that the use of children was widespread; for example, most Ethiopian prisoners of war in one large POW camp in Eritrea were estimated to be aged 14–18.^[100]

The economies of both countries were already weak as a result of decades of cold-war politics, colonialism, civil war and drought. The war exacerbated these problems, resulting in food shortages. Prior to the war, much of Eritrea's trade was with Ethiopia, and much of Ethiopia's foreign trade relied on Eritrean roads and ports.^[101] According to former Eritrean official Fathi Osman, Eritrea attempted to alleviate its money problems by issuing war bonds to the Eritrean diaspora, as they lacked other means to fund their military operations.^[102]

Ethiopia engaged in a 6-year long disarmament, demobilization and reintegration (DDR) programme for the over 148,000 veterans who fought in the war. In total, the programme cost $174 million; the Ethiopian government could only pay around $3.1 million themselves, and had to pay the rest back with a $170 million loan from the World Bank.^[103][104]

The fighting also spread to Somalia as both governments tried to outflank one another. The Eritrean government began supporting the Oromo Liberation Front,^[92] a rebel group seeking independence of Oromia from Ethiopia that was based in a part of Somalia controlled by Mohamed Farrah Aidid.^[105] Ethiopia retaliated by supporting groups in southern Somalia who were opposed to Aidid, and by renewing relations with the Islamic regime in Sudan—which is accused of supporting the Eritrean Islamic Salvation, a Sudan-based group that had launched attacks in the Eritrea–Sudan border region—while also lending support to various Eritrean rebel groups including a group known as the Eritrean Islamic Jihad.^[106][107]

On 14 April 2002, the Eritrea–Ethiopia Boundary Commission that was established under the Algiers Agreement in collaboration with Permanent Court of Arbitration in The Hague agreed upon a "final and binding" verdict. The ruling awarded some territory to each side, but Badme (the flash point of the conflict) was awarded to Eritrea.^[108][109] Martin Pratt writes:

"However, as it became clear that the boundary identified by the commission placed the village of Badme inside Eritrea, satisfaction gave way to triumphalism within Eritrea and dismay within Ethiopia. Despite its tiny size and lack of any apparent strategic or economic value, Badme—the location of the spark that ignited the conflagration—had taken on great symbolic significance over the course of the war; previous research (Hensel and Mitchell, 2005) indicates that symbolically valued territory may be especially prone to violent conflict. For many people in both countries, Badme's fate became the primary indicator of whether the enormous loss of life during the fighting had been justified."^[110]

• Air campaign of the Eritrean–Ethiopian War [ru]
• Tigray War
• List of interstate wars since 1945
• Ukrainian involvement in the Eritrean-Ethiopian War
• Russian involvement in the Eritrean-Ethiopian War

• Abbink, Jon (2003). "Badme and the Ethio-Eritrean Border: The Challenge of Demarcation in the Post-War Period" (PDF). Africa: Rivista trimestrale di studi e documentazione. 58 (2): 219–231. ISSN 0001-9747. JSTOR 40761693.^{[dead link‍]}
• Banks, Arthur S.; Müller, Thomas Christian; Overstreet, William (2006). Political handbook of the world: 2005-2006. Washington: CQ Press. p. 366. ISBN 978-1-568-02952-8.

• De Guttry, Andrea; Post, Harry H. G.; Venturini, Gabriella, eds. (2021). The 1998–2000 Eritrea-Ethiopia War and Its Aftermath in International Legal Perspective (2nd ed.). The Hague: T.M.C. Asser Press. doi:10.1007/978-94-6265-439-6. ISBN 978-94-6265-439-6. S2CID 241228341.
• Negash, Tekeste; Tronvoll, Kjetil (2000). Brothers at war: making sense of the Eritrean-Ethiopian war. Eastern African studies. Oxford: Currey [u.a.] ISBN 978-0-8214-1372-2.
• Reid, Richard (2020). Shallow Graves: A Memoir of the Ethiopia-Eritrea War. Oxford University Press. ISBN 9781787383289.

• Bereketeab, Redie (2010). "The Complex Roots of the Second Eritrea- Ethiopia War: Re-examining the Causes". African Journal of International Affairs. 13 (1–2): 15–59.
• Butcher, Charity; Maru, Makda (2 January 2018). "Diversionary Tactics and the Ethiopia–Eritrea War (1998–2000)". Small Wars & Insurgencies. 29 (1): 68–90. doi:10.1080/09592318.2018.1403747. ISSN 0959-2318. S2CID 148715898.
• Connell, Dan Eritrea-Ethiopia War Looms, Foreign Policy in Focus 21 January 2004
• Gilkes, Patrick; Plaut, Martin (August 2000). Honey, Martha; Barry, Tom (eds.). "The War Between Ethiopia and Eritrea" (PDF). Foreign Policy in Focus. 5 (25). Archived from the original (PDF) on 20 April 2005.
• Hamilton, Kevin (2000). "Beyond the Border War: The Ethio-Eritrean Conflict and International Mediation Efforts" (PDF). Princeton Journal of Public and International Affairs. 11: 113–136. Archived from the original on 20 February 2006.
• Murphy, Sean D. (2016). "The Eritrean-Ethiopian War (1998-2000)". SSRN Electronic Journal. doi:10.2139/ssrn.2856670. ISSN 1556-5068.
• Reid, Richard (2003). "Old Problems in New Conflicts: Some Observations on Eritrea and Its Relations with Tigray, from Liberation Struggle to Inter-State War". Africa: Journal of the International African Institute. 73 (3): 369–401. doi:10.2307/3556909. ISSN 0001-9720. JSTOR 3556909.
• Woldemariam, Michael (3 April 2015). "Partition Problems: Relative Power, Historical Memory, and the Origins of the Eritrean-Ethiopian War". Nationalism and Ethnic Politics. 21 (2): 166–190. doi:10.1080/13537113.2015.1032026. ISSN 1353-7113. S2CID 142897340.

• Brothers at Arms – Eritrea. A news clip filmed by Journeyman Pictures during the war.

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