{"id":7297,"date":"2026-08-27T10:30:52","date_gmt":"2026-08-27T10:30:52","guid":{"rendered":"https:\/\/nexacentre.com\/?p=7297"},"modified":"2026-09-10T15:42:16","modified_gmt":"2026-09-10T15:42:16","slug":"the-widening-interior-ethiopias-internal-fronts-sudans-fragmenting-war-and-a-region-running-out-of-peacekeepers","status":"publish","type":"post","link":"https:\/\/nexacentre.com\/so\/the-widening-interior-ethiopias-internal-fronts-sudans-fragmenting-war-and-a-region-running-out-of-peacekeepers\/","title":{"rendered":"The Widening Interior: Ethiopia\u2019s Internal Fronts, Sudan\u2019s Fragmenting War, and a Region Running Out of Peacekeepers"},"content":{"rendered":"

The Widening Interior: Ethiopia\u2019s Internal Fronts, Sudan\u2019s Fragmenting War, and a Region Running Out of Peacekeepers<\/h1>
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US Navy carriers in the Red Sea, the corridor running from the Bab al-Mandeb strait to Suez. Roughly an eighth of world seaborne trade passes through it, and the peacekeeping presence around it is shrinking. Photo: MC Seaman Rob Gaston \/ U.S. Navy, public domain.<\/figcaption><\/figure>\n\n
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Nexa Insight · Regional Analysis · Horn of Africa Weekly Update — Issue No. 3<\/p>\n

Reference: NRTC\/HAWU\/2026-03  |  Coverage period: 22–29 August 2026  |  Published: 27 August 2026<\/p>\n\n

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This week<\/p>\n

The Horn’s crises stopped spreading outward into new alliances and started deepening inward: Ethiopia’s worst pressure is now domestic, Sudan’s army wants outright victory, and the peacekeeping presence is shrinking faster than local forces can replace it.<\/p>\n <\/div>\n

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The past two briefings tracked the Horn’s crises consolidating outward — into named blocs, cross-border coalitions and a hardening Cairo–Asmara–Mogadishu axis. This week the movement was inward. Ethiopia’s most serious pressure came not from the Eritrean border but from an emerging understanding between Amhara and Tigrayan armed movements that were fighting each other three years ago. Sudan’s army began speaking openly of destroying the Rapid Support Forces rather than containing them, even as analysts warned that an RSF defeat would fragment the war rather than end it. Somalia’s African Union mission moved into an accelerated, underfunded handover. Two United Nations peacekeepers were killed in South Sudan’s Jonglei state. And the Red Sea recorded a further Houthi strike. This briefing sets out what changed this week and why it matters.<\/p>\n <\/div>\n <\/div>\n\n

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Ethiopia<\/p>\n

Abiy faces coordinated armed pressure in Amhara, Oromia and Tigray at once, with Eritrea on the northern edge. The live risk is a federal army too stretched to close any one front — not a conventional border war.<\/p>\n <\/div>\n

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1. Ethiopia: The Internal Fronts Converge<\/h2>\n

For most of this year the Ethiopia file has been read through the interstate dispute with Eritrea over Red Sea access and the proxy contest in Tigray. This week the sharper development was domestic. On 26 August, regional reporting described Amhara Fano factions and Tigrayan forces — adversaries during the 2020–2022 war — reaching working understandings in their parallel confrontations with the federal government (MadaMasr, 2026). It follows a mid-August announcement that the loose Fano umbrella fighting in the north-west would join a wider alliance of anti-government armed groups drawn from several regions (Al Jazeera, 2026a).<\/p>\n

Read alongside the “Tsimdo” coalition described last week — combining the Tigray People’s Liberation Front with Eritrean forces — the picture is of Prime Minister Abiy Ahmed’s government facing armed pressure on multiple regional fronts simultaneously: Amhara, Oromia and Tigray, with Eritrea active on the northern periphery. Abiy has consolidated authority since the June 2026 elections, but consolidation at the centre has not produced control across the regions (Al Jazeera, 2026a; Atlantic Council, 2026).<\/p>\n

The near-term risk is not a single decisive battle but a federal army stretched thin enough that no front can be closed. Tactical understandings between Amhara and Tigrayan commanders need not harden into a formal alliance to matter; they need only persist long enough to deny the Ethiopian National Defence Force the ability to concentrate force. For mediators, engagement pitched solely at the Ethiopia–Eritrea interstate track addresses the least active part of the problem.<\/p>\n

FILE — Ethiopian federal police on patrol in Addis Ababa, 2021. (Public domain)<\/p>\n <\/div>\n <\/div>\n\n

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Sudan<\/p>\n

The army now aims to destroy the RSF, not contain it. But a shattered RSF would splinter into local militias, leaving a war with no negotiating partner — harder to end, not easier. Displacement is rising regardless of the front line.<\/p>\n <\/div>\n

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2. Sudan: From Containing the RSF to Defeating It — and What That Would Break<\/h2>\n

Sudan’s war shifted this week in rhetoric more than in territory. On the back of Sudanese Armed Forces (SAF) gains through the centre of the country, army leaders began framing the objective as the outright defeat of the RSF rather than its containment (Al Jazeera, 2026b). The Critical Threats Project’s 20 August assessment recorded the RSF countering recent SAF advances — a paramilitary force under pressure but not collapsing (Critical Threats Project, 2026a).<\/p>\n

The humanitarian trajectory worsened independently of the front lines. The United Nations reported more than 200,000 people newly displaced across the wider Kordofan region as fighting and seasonal flooding compounded, with displacement in the Sheikan district around El Obeid up roughly a quarter over eight months (UN News, 2026). UN teams that reached El Fasher for the first time since the RSF seized the North Darfur capital in October described the largely deserted city as a “crime scene” (Al Jazeera, 2026b).<\/p>\n

The analytical point for regional decision-makers is the one several analysts raised this week: a military end to the RSF as a unified force would not necessarily end the violence. A defeated RSF could fragment into local armed groups and criminal networks across Darfur and Kordofan, leaving a war that is harder to mediate because it no longer has two addresses. Planning premised on a negotiated settlement between two commands should account for one of those commands ceasing to exist without the fighting stopping.<\/p>\n <\/div>\n <\/div>\n\n

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Somalia<\/p>\n

AUSSOM has begun handing security to Somali forces before either their capacity or the mission’s post-2026 funding is settled, while Al-Shabaab tightens its grip on the routes into Mogadishu.<\/p>\n <\/div>\n

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3. Somalia: The Handover Starts Before the Funding Is Fixed<\/h2>\n

The African Union Support and Stabilisation Mission in Somalia (AUSSOM) entered an accelerated handover of security responsibility to the Somali National Army this month, against an unresolved financial backdrop (Institute for Security Studies, 2026; Critical Threats Project, 2026b). The United States has signalled it will not use its Security Council veto to block renewal of the mission’s mandate at the end of 2026, but will not support UN-assessed logistical or operational funding for it — a distinction that analysts warn leaves AUSSOM facing an operational funding gap into 2027 (Institute for Security Studies, 2026).<\/p>\n

This lands as Al-Shabaab sustains pressure on the approaches to Mogadishu. The Critical Threats Project recorded roughly a 60 percent rise in Al-Shabaab attacks in Lower Shabelle between June and August compared with the first five months of the year, concentrated on the supply routes linking the capital to government-held towns; an IED ambush near Awdheegle on 10 August killed at least ten Somali soldiers, including special-forces personnel (Critical Threats Project, 2026b).<\/p>\n

Last week’s briefing noted President Hassan Sheikh Mohamud’s call for AU peacekeepers to “go home.” This week the institutional machinery began acting on that intent — before a demonstrated Somali capacity to hold ground, and before the mission’s funding is secured. That sequencing is the one this briefing has repeatedly identified as most associated with insurgent gains.<\/p>\n <\/div>\n <\/div>\n\n

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South Sudan<\/p>\n

An ambush that killed two UN peacekeepers in Jonglei shows the security climate in which the first-ever election, set for 22 December, will be held — with the main opposition leader detained and unable to stand.<\/p>\n <\/div>\n

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4. South Sudan: Peacekeepers Killed as the December Vote Nears<\/h2>\n

On 24 August, two United Nations peacekeepers — both Ethiopian nationals serving with the UN Mission in South Sudan (UNMISS) — were killed and seven wounded in an ambush on a patrol in the Pajut area of Jonglei state. The mission condemned the attack, called for an investigation, and noted that attacks on peacekeepers may constitute a war crime (UNMISS, 2026).<\/p>\n

The ambush underlines the environment in which South Sudan is preparing for its first election since independence, scheduled for 22 December 2026. Amendments passed in July deferred the national census and the permanent constitution until after the vote; First Vice President Riek Machar has been detained since March on treason and crimes-against-humanity charges, and it is unclear whether he could stand; his SPLM-in-Opposition has called the pursuit of elections on the current timetable dangerous (Radio Tamazuj, 2026; PBS NewsHour, 2026).<\/p>\n

As last week’s UN Commission warning made explicit, the risk is no longer only that the peace agreement is failing in the abstract — it is that the vote itself proceeds without the safeguards or the participation that would make its result accepted. An election held amid active fighting in Jonglei and without the principal opposition figure is likely to be contested regardless of its formal legality.<\/p>\n <\/div>\n <\/div>\n\n

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The outside powers<\/p>\n

The Horn’s wars are also proxy contests: the UAE behind Sudan’s RSF and Ethiopia; Egypt, Türkiye and Saudi Arabia behind Sudan’s army and Somalia; the US and China dug in at Bab al-Mandeb. This week’s peacekeeping drawdown widens the space each is competing for.<\/p>\n <\/div>\n

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5. The Outside Powers: A Contest Fought Through Local Clients<\/h2>\n

The developments in the country sections above did not happen in a vacuum of foreign interest. Sudan’s war has functioned for two years as an indirect contest between the United Arab Emirates, widely reported to have supplied the Rapid Support Forces with weapons routed through Chad and Ethiopia, and a rival grouping of Egypt, Türkiye and Saudi Arabia backing the Sudanese Armed Forces — with Cairo reported to have facilitated the transfer of Turkish-made drones now flown by Egyptian-trained Sudanese crews (Critical Threats Project, 2026c; American Enterprise Institute, 2026). The same fault line runs through the Ethiopia file: the UAE is aligned with Addis Ababa, while Egypt, Eritrea and, in varying degrees, Saudi Arabia sit on the other side, a pattern this briefing has tracked since Issue No. 1.<\/p>\n

Layered above the middle powers is the US–China dimension. Djibouti, at the mouth of the Bab al-Mandeb strait through which roughly an eighth of global maritime trade passes, hosts China’s only overseas military base a few miles from the United States’ Camp Lemonnier — the two largest external military footprints in Africa, side by side at the chokepoint (Council on Foreign Relations, 2026). Washington’s decision this month to keep the AUSSOM mandate alive while withholding funding is, read in this light, a calibrated use of leverage: it retains a say over Somalia’s security transition without paying for it, at a moment when Gulf states and Türkiye are competing to be Mogadishu’s partner of choice.<\/p>\n

For IGAD and the African Union, the consequence is that a mediator addressing any single Horn crisis is, in practice, negotiating with the external patrons standing behind the local parties. The peacekeeping drawdown covered above removes one of the few remaining neutral elements from that board. Multilateral engagement calibrated to local disputes continues to lag the scale of the outside competition.<\/p>\n <\/div>\n <\/div>\n\n

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Red Sea<\/p>\n

Another Houthi strike on 24 August confirms the mid-August escalation was not a spike. Attack tempo is below 2024 levels, but the quiet period is over and port-corridor risk is unresolved.<\/p>\n <\/div>\n

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6. Maritime Corridor: The Red Sea Stays Hot<\/h2>\n

On 24 August, the Houthis reported striking a Saudi-linked vessel in the Red Sea — the latest in a sequence of attacks since the collapse of the Yemen truce that followed a Saudi airstrike on Sanaa airport in mid-July (Al Jazeera, 2026c). It follows the 11 August double-tap strike on the Egyptian-owned Tihamah in the Bab al-Mandeb strait — covered last week — that killed six people, the first shipping fatalities in the corridor in more than a year.<\/p>\n

For Horn of Africa states whose ports at Djibouti, Berbera and Port Sudan depend on sustained confidence in the corridor, the pattern since mid-August is the signal: not a return to the 2024 attack tempo, but a clear end to the quieter period, with the underlying risk unresolved.<\/p>\n <\/div>\n <\/div>\n\n

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For decision-makers<\/p>\n

Five things to act on this week — and the judgement behind each.<\/p>\n <\/div>\n

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Briefing Points for Regional Decision-Makers<\/h2>\n
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  • On Ethiopia:<\/strong> The most active pressure on the federal government this week was internal and multi-front. Mediation focused only on the Ethiopia–Eritrea dispute misses where the fighting is; track the Amhara–Tigray tactical understanding as a capacity problem for the ENDF, not a marriage of convenience.<\/li>\n
  • On Sudan:<\/strong> The SAF’s shift to an explicit goal of defeating the RSF outright raises the prospect of a fragmented post-RSF conflict that is harder to mediate. Plan for a scenario in which one command dissolves without the war ending.<\/li>\n
  • On Somalia:<\/strong> The AUSSOM handover is running ahead of both demonstrated Somali capacity and secured funding. Troop-contributing countries and donors should tie the transition timetable to verifiable benchmarks, not the calendar.<\/li>\n
  • On South Sudan:<\/strong> The killing of UNMISS peacekeepers and the firm 22 December election date make the next four months a live crisis-prevention window. Treat the vote as a process to be made credible, not a date to be administered.<\/li>\n
  • On the outside powers:<\/strong> Every Horn crisis now carries an external sponsor — the UAE, Egypt, Türkiye, Saudi Arabia on the middle tier; the US and China at the chokepoint. Mediation that does not engage the patrons behind the local parties will not hold. Peacekeeping is contracting faster than local forces can absorb the load, widening the space that competition fills.<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n
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    Bottom line<\/p>\n

    The danger this week is not a new war but a thinning of the shock absorbers — an overstretched Ethiopian state, a Sudanese war that may lose its negotiating partner, a peacekeeping drawdown with nothing behind it, and outside powers filling the space. For the world, the exposure runs through Bab al-Mandeb.<\/p>\n <\/div>\n

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    Conclusion<\/h2>\n

    If the last two briefings were about the Horn’s conflicts joining up across borders, this one is about their foundations giving way from within — and about who moves into the space that creates. Ethiopia’s government is pressed on more internal fronts than it can simultaneously hold; Sudan’s likeliest military outcome now carries its own risk of a longer, fragmented war; Somalia’s security transition has begun without the capacity or the money to finish it; South Sudan heads into a first election with its opposition leader detained and its peacekeepers under fire. The common thread is the erosion of the buffers — neutral forces, credible mediation, functioning power-sharing — that have absorbed shocks before, and the readiness of the UAE, Egypt, Türkiye, Saudi Arabia, and behind them the United States and China, to back a side rather than a settlement.<\/p>\n

    The consequences do not stay in the region. A less stable Horn means a less predictable Bab al-Mandeb, through which roughly an eighth of world seaborne trade passes; competing foreign bases at Djibouti with a shrinking multilateral presence around them; and migration and displacement pressures — 200,000 newly uprooted in Kordofan alone this month — that reach the Gulf and Europe. For the region’s leaders, the coming week offers less room for error than the headline calm suggests. The two developments most likely to shape it are whether the Amhara–Tigray understanding in Ethiopia holds or fades, and whether the AUSSOM funding gap is closed or left to widen into 2027 — both still within reach of regional action through IGAD and the AU.<\/p>\n <\/div>\n <\/div>\n\n

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    References<\/h2>\n

    Al Jazeera (2026a). Northern Ethiopia’s shifting alliances explained. aljazeera.com<\/p>\n

    Al Jazeera (2026b). The RSF’s defeat will not end Sudan’s war but merely fragment it. aljazeera.com<\/p>\n

    Al Jazeera (2026c). Yemen’s Houthis report attack on Saudi ship. aljazeera.com<\/p>\n

    American Enterprise Institute (2026). External meddling for the Red Sea exacerbates conflicts in the Horn of Africa. aei.org<\/p>\n

    Atlantic Council (2026). Ethiopia and Eritrea are on the brink of war again. atlanticcouncil.org<\/p>\n

    Council on Foreign Relations (2026). China’s strategy in Djibouti: mixing commercial and military interests. cfr.org<\/p>\n

    Critical Threats Project (2026a). RSF Counters Recent SAF Gains in Sudan — Africa File, 20 August 2026. criticalthreats.org<\/p>\n

    Critical Threats Project (2026b). AU Somalia Mission in Peril; Puntland Consolidates Control — Africa File, 13 August 2026. criticalthreats.org<\/p>\n

    Critical Threats Project (2026c). External Meddling for the Red Sea Exacerbates Conflicts in the Horn of Africa — Africa File Special Edition. criticalthreats.org<\/p>\n

    Institute for Security Studies (2026). Rethinking the AU’s Somalia peace mission after US funding cuts. issafrica.org<\/p>\n

    MadaMasr (2026). One-time bitter enemies Amhara, Tigray reach understandings in fight against Ethiopian govt. madamasr.com<\/p>\n

    PBS NewsHour (2026). South Sudan says it will hold first-ever election in December after repeated delays. pbs.org<\/p>\n

    Radio Tamazuj (2026). Will elections be held in December 2026 in South Sudan? radiotamazuj.org<\/p>\n

    UN News (2026). Over 200,000 people newly displaced in Sudan’s Kordofan as fighting rages. news.un.org<\/p>\n

    UNMISS (2026). Statement on the attack on peacekeepers in Jonglei state, 24 August 2026. unmiss.unmissions.org<\/p>\n <\/div>\n\n

    Abdinasir Hassan Timoweyne is Chairperson of the Nexa Research and Training Centre and a political analyst specialising in the Horn of Africa and the Middle East. He lectures in International Relations at New Generation University.<\/p>\n\n\n

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