Abiy Ahmed

Ethiopia has received 12 Russian Su-35 fighter jets and will acquire four S-400 air defence batteries, in a deal experts say strengthens Moscow’s foothold in the Horn of Africa while bolstering Addis Ababa’s military amid conflict at home and tensions with neighbouring Eritrea.

Prime Minister Abiy Ahmed announced the deal in Moscow during the two-day Russia-Africa Summit.

“I value the friendly relations between Russia and Ethiopia,” Russian President Vladimir Putin said in a statement. “Russia and Ethiopia stand together in international affairs.”

Experts say the agreement builds on decades of military cooperation, offering Moscow arms revenue and diplomatic influence while allowing Ethiopia to strengthen its armed forces amid its ongoing conflict in Tigray.

Here is what we know:

What weapons is Ethiopia acquiring?

Abiy said Ethiopia had taken delivery of its first 12 Su-35s under an earlier agreement with Russia, with four S-400 batteries to follow, but did not say when the air defence systems would arrive.

The aircraft would expand an air force already equipped with Russian fighter jets. The S-400 systems would complement this existing fleet by helping the military defend itself against aerial threats, experts say.

“They would be best used against conventional air threats,” Benedict Manzin, a lead analyst on the Middle East and Africa at risk consultancy Sibylline, told Al Jazeera. “In a war with Eritrea, they could be used against Eritrea’s limited air force and drones.”

However, air defences do not provide protection against every kind of attack.

“As we have seen in Ukraine, conventional air defence systems can be overwhelmed by small, cheap drones,” he said.

Why does Russia want closer ties with Ethiopia?

The relationship predates the current competition for influence in Africa.

“Russia has been engaged in Ethiopia for decades, part of the legacy of the Cold War,” Manzin said.

The Soviet Union backed Ethiopia’s former communist government. Today’s cooperation builds on those foundations, with the two countries having signed military agreements intended to improve the Ethiopian armed forces’ capabilities through technology, knowledge and training, according to the Ethiopian News Agency.

Commercial interests also matter.

“Russia is also in the business of making money through arms sales,” Manzin said. “This is one of Russia’s primary exports to Africa.”

Weapons sales provide revenue while sustaining relationships with governments that require training, maintenance and replacement equipment. But the partnership extends beyond defence.

Abiy said his talks with Putin covered nuclear energy, health and trade, alongside bilateral and multilateral cooperation, while in a statement, Putin said bilateral trade exceeded $1.3bn in January-September, more than twice the figure for all of 2025.

He identified energy, agriculture, industry and education among potential areas for further cooperation.

Ethiopia’s size also makes it attractive to competing powers, with experts saying that because it is Africa’s second-most populous country, it offers a substantial market.

“Everyone engages a bit, and Ethiopia tries to maximise its gains,” Manzin said.

Does this mean Ethiopia is turning away from the West?

Manzin suggested Ethiopia is widening its options rather than committing exclusively to Moscow.

“African states are aware that they are a focus of geopolitical competition,” he said.

That competition gives governments room to seek weapons, investment and diplomatic backing from different partners. Ethiopia’s relationship with Russia coexists with a significant Chinese presence and continuing Western investment in the country.

“China has a huge presence in Ethiopia, and Russian arms have always been a huge factor,” Manzin said. Moscow is seeking to turn those established connections into broader influence as Western sanctions over its war in Ukraine constrain its international relationships.

Russia supplied 15 percent of African imports of major weapons in 2021–2025, behind the United States at 19 percent and China at 17 percent, according to the Stockholm International Peace Research Institute (SIPRI).

Could the weapons be used in Tigray?

In his statement, Abiy thanked Putin for ensuring the aircraft were delivered a year ahead of schedule and said the equipment would strengthen Ethiopia’s ability to “preemptively deter aggression”.

The delivery comes amid renewed fighting in Tigray, a separate rebellion in Amhara and concerns about a possible conflict with Eritrea.

“Ethiopia is buying a lot of aircraft,” Manzin said. “The timing comes as Ethiopia is going through conflict in Tigray, with speculation about war with Eritrea.”

He cautioned against assuming the latest battlefield developments directly prompted purchases negotiated earlier.

“Aircraft are helpful regardless, as they are using aircraft and the air force heavily during any suppression,” he said.

What’s the conflict about?

Fighting between Ethiopia’s federal army and Tigrayan forces intensified in late September, in effect unravelling the November 2022 Pretoria peace agreement that ended a devastating two-year war.

Each side has blamed the other for renewed violence. Tensions grew following the formation of a seven-group alliance seeking to overthrow Abiy’s government and establish a transitional administration.

Government troops and allied forces entered Mekelle, Tigray’s capital, earlier in October after Tigray People’s Liberation Front (TPLF) fighters withdrew.

Addis Ababa subsequently installed a six-month caretaker administration, but rebel commanders have promised to continue fighting.

Eritrea denies troop movement inside northern Ethiopia as US calls for de-escalation.

Ethiopian forces and allied fighters say they have expanded control across Tigray and entered the historic city of Aksum, as fighting in the northern region continues.

The pro-government militia, the Tigray Peace Force (TPF), also claimed on Thursday that troops from neighbouring Eritrea have retreated towards the border.

Solomon Hailemariam, spokesperson for the TPF, said Eritrean forces had sustained significant casualties during the fighting.

But Eritrea’s Information Minister Yemane Gebremeskel rejected the claims as false in comments to local media. The extent of the reported losses could not be independently verified.

The Armed Conflict Location & Event Data Project (ACLED), an independent conflict-monitoring organisation, documented Ethiopian government forces and TPF fighters entering Aksum, while rival Tigrayan fighters remained in surrounding mountainous areas.

ACLED also reported Eritrean troops withdrawing across the border through Zalambessa, following advances by Ethiopian forces and their allies into several strategic towns.

“Ethiopian troops are on one side, and Eritrean troops are on the other,” Selam, a resident of Zalambessa whose first name was changed for security reasons, told the AFP news agency on Thursday.

AFP reported that there is no fighting now, but the town has been without power or water for a week.

“We are caught in the middle and living in deep anxiety,” Salem told the news agency.

Trading accusations

ACLED also documented Ethiopian tanks and heavy weapons moving towards the Eritrean border on Tuesday, raising concerns about a possible confrontation between the neighbouring countries.

Addis Ababa has accused Eritrea, as well as Sudan and Egypt, of backing a rebel alliance of seven groups that is fighting the government of Abiy Ahmed.

Eritrea has denied accusations that its forces entered Tigray to support the armed opposition groups, accusing Ethiopia of threatening its sovereignty.

Eritrea, which fought alongside Ethiopia’s federal army in the 2020-2022 war, severed diplomatic ties with Ethiopia over the accusations earlier this month.

Khartoum and Cairo have also denied involvement in the conflict.

The TPF supports Ethiopia’s federal government in its campaign against the Tigrayan rebels linked to the Tigray People’s Liberation Front (TPLF).

Ethiopian forces captured Tigray’s regional capital Mekelle earlier this month, and the TPLF confirmed that it had withdrawn from the city and moved its regional administration “temporarily” to another location. Government forces also retook the towns of Adwa and Adigrat from the TPLF without a fight. Further, there are reports of Ethiopian advances in the town of Rama, close to the border with Eritrea.

On Wednesday, US Secretary of State Marco Rubio called for de-escalation in a phone call with Ethiopian Prime Minister Abiy, following reports of the alleged confrontation between Ethiopian and Eritrean forces.

Rubio said the region could not tolerate more conflict, according to a statement from the US Department of State.

Eritrea dismisses allegation as Ethiopia’s pretext for more war.

Eritrean soldiers have been seen driving through a northern town inside Ethiopia, witnesses tell the Reuters news agency, days after the neighbouring countries severed ties.

At least two witnesses told Reuters they saw “dozens” of Eritrean soldiers drive through Adigrat in two trucks on Wednesday. The town is located 25km (15 miles) south of the border with Eritrea.

The witnesses said they could identify the soldiers as Eritrean by their off-white camouflage uniforms.

Another Adigrat resident who was not in town at the time said family members had told him they had also seen Eritrean troops, according to Reuters, which could not independently verify their accounts.

“The Eritrean army has entered Tigray in uniform, equipped with heavy weaponry,” said Gebreigziabher Beyene, commander of the Tigray Peace Force, a pro-government militia that has fought alongside the federal army.

“This force is being struck by drones,” he said, adding Eritrea was “deliberately deploying its forces so that the fighting takes place inside Tigray rather than spilling into Eritrea”.

Last week, the chief administrator in Ethiopia’s northeastern Afar region said Eritrean troops were fighting in the area, but Reuters was unable to confirm the claim.

In a statement on X, Eritrea’s Information Minister Yemane Meskel did not deny that troops had crossed the border, but said Ethiopia’s government was creating “a fallacious narrative of ‘self-defense’ to rationalise and camouflage its war of aggression”.

If confirmed, it would mark the first time Eritrean forces have been seen inside Ethiopia since the renewal of fighting between Ethiopian forces and a seven-group armed alliance, including the Tigray People’s Liberation Front (TPLF), on September 23.

Ethiopia has accused Eritrea, as well as Egypt and Sudan of backing the armed alliance which is fighting to remove the government. All three countries have denied involvement.

Eritrea announced it was severing ties with Ethiopia on Thursday after Addis Ababa announced it would close its embassy in Asmara and expel 10 Eritrean diplomats.

In a statement, Eritrea’s Ministry of Foreign Affairs said Ethiopia’s actions had left it with “no option but to reciprocate in kind and sever all diplomatic ties with Ethiopia”.

On Monday, Ethiopian forces captured Tigray’s regional capital Mekelle, days after the TPLF confirmed that it had withdrawn from the city and moved its regional administration “temporarily” to another location.

It happened as Ethiopia’s Prime Minister Abiy Ahmed was sworn in for another five-year term, during which he insisted that his landlocked country must have access to the Red Sea.

On the same day, Eritrea joined Somalia, Sudan and Egypt in issuing a joint declaration calling for a political and peaceful solution to the war in Ethiopia.

The declaration appeared to push back against several policies pursued by Ethiopia in recent years, highlighting widening rifts between Addis Ababa and its neighbours.