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Sudan Humanitarian Crisis 2026: The World's Largest Displacement Crisis, Explained

Analysis Sudan By Amira Hassan · April 2026
Analysis notice: This is analysis and commentary by Horn Updates editors. It does not represent the position of any government, institution, or external party. Sources are cited where applicable.

By early 2026, Sudan's civil war had displaced more people than any other conflict on earth. Over 11 million Sudanese were internally displaced, driven from their homes by fighting between the Sudanese Armed Forces (SAF) and the Rapid Support Forces (RSF) that began in April 2023. More than 2 million had crossed into neighboring countries, including Chad, Egypt, South Sudan, Ethiopia, and the Central African Republic. Famine had been formally declared in parts of Darfur. The UN called it the world's largest humanitarian crisis. And yet for most of the world, Sudan barely registers.

That invisibility is not accidental. It is the product of access restrictions imposed by both warring parties, the collapse of independent journalism inside the country, competition from other crises for international attention, and the failure of major powers to prioritize a conflict that does not align cleanly with their geopolitical interests. Understanding the Sudan humanitarian crisis in 2026 requires not just accounting for its scale, but understanding why the international system has so comprehensively failed to respond to it.

The scale of displacement

The numbers are difficult to absorb. Sudan's pre-war population was approximately 46 million. More than one in four Sudanese people has now been forcibly displaced, either internally or across borders. The Internal Displacement Monitoring Centre puts Sudan's internal displacement figure as the highest of any country in the world, surpassing Democratic Republic of Congo, Syria, and Ukraine. The figures are not static: the pace of displacement has accelerated in phases that track the military campaigns of both sides.

The geography of displacement tells its own story. Darfur, Sudan's vast western region, has seen some of the worst violence. The RSF has been documented committing mass atrocities against non-Arab communities there, attacks that UN experts have described as meeting the threshold for genocide. El Fasher, the last major city in Darfur not under RSF control, has been under siege for much of 2024 and 2025, with civilians trapped inside and humanitarian access blocked. Khartoum itself, a city of five million before the war, has been largely evacuated: its residents scattered across Sudan and neighboring countries, its infrastructure systematically damaged.

Famine in Darfur: how a food system collapses

Sudan was already food insecure before the war. A large proportion of its population depended on rain-fed subsistence agriculture in regions that were vulnerable to climate variability. The war destroyed that fragile system on multiple levels simultaneously.

Farmers were driven from their land during planting and harvest seasons, meaning crops were not grown or not collected. Markets were disrupted by fighting and looting, breaking the chains through which food moved from surplus to deficit areas. Roads and bridges were damaged, cutting off supply routes. Aid agencies found their convoys blocked by both the SAF, which at various points restricted access to RSF-held areas, and the RSF, which looted aid supplies in documented incidents across Darfur and Kordofan. Sudan famine conditions were declared by the Integrated Food Security Phase Classification system in mid-2024, the first famine declaration in any country in many years.

By early 2026, the UN estimated that nearly 25 million Sudanese, more than half the population, faced acute food insecurity. Of those, several million were in emergency or catastrophic conditions. Children in Darfur displacement camps have been documented dying from acute malnutrition at rates that humanitarian workers describe as among the highest they have seen anywhere in the world.

Why the international response has fallen short

The gap between the scale of Sudan's crisis and the international response to it is one of the starkest examples of humanitarian failure in recent years. The UN's 2025 Sudan humanitarian response plan was funded at less than 40 percent. Donor governments, facing domestic political pressures and competing demands from Ukraine, Gaza, and elsewhere, have not prioritized Sudan. The Gulf states, which have both the wealth and the geographic proximity to make a meaningful difference, have been compromised by their political relationships: Saudi Arabia with the SAF, the UAE with the RSF.

Access is the operational constraint that compounds everything else. To deliver aid in Sudan in 2026, agencies must negotiate with the SAF for access in government-held areas and with the RSF in the areas it controls. Both parties have used humanitarian access as a tool of war, granting it when convenient, blocking it when it suits their military interests. The UN and NGO community have documented systematic obstruction, theft of aid supplies, and deliberate targeting of aid workers.

The media infrastructure that would normally cover a crisis of this scale has been largely absent. Sudan had a limited independent media sector before the war, and what existed has been unable to operate safely. Foreign correspondents have been denied access or have found it too dangerous to operate. The result is that images and testimony from Sudan's worst affected areas reach the outside world slowly and incompletely, reducing the public pressure that might otherwise drive government action.

The regional spillover

Sudan's humanitarian crisis does not stop at Sudan's borders. Chad, already one of the world's poorest countries and host to refugees from previous Sudanese conflicts, has received more than 700,000 new arrivals since April 2023. Its eastern refugee settlements are overwhelmed. The Lake Chad basin, already destabilized by the Boko Haram insurgency and climate-driven resource competition, is absorbing a new wave of displacement it is not equipped to handle.

South Sudan, still managing its own post-conflict recovery and food security crisis, has received hundreds of thousands of Sudanese. Ethiopia, which shares a long border with Sudan and has its own internal displacement crisis in Tigray and Amhara, has taken in over 100,000 Sudanese refugees. The Sudan displacement crisis 2026 is not a contained bilateral problem: it is reshaping population movements across a large part of the continent.

What accountability would look like

Accountability for the Sudan humanitarian crisis requires holding two things in tension: the immediate need to get aid to people who are dying, and the longer-term need to hold responsible parties accountable for conduct that international law classifies as war crimes and potentially genocide.

On the first count, the international community needs to move beyond the current model of negotiated access, which gives both parties a veto over humanitarian operations, and push for cross-border and cross-line operations that do not require permission from the parties committing violations. That requires political will that has been absent.

On the second count, the International Criminal Court has jurisdiction over Darfur from its previous investigations and could potentially extend its work to cover current atrocities. The UN Human Rights Council has established a monitoring mechanism. But without enforcement, documentation alone does not protect civilians. The RSF's external supporters, particularly those providing weapons and financial support, could be targeted through sanctions and diplomatic pressure. That too requires political will from governments that have so far calculated their interests differently.

Sudan's humanitarian crisis in 2026 is not a failure of resources or technical capacity. The world knows how to respond to famines and displacement crises. It is a failure of political will, compounded by a conflict in which powerful external states are invested in competing sides, and in which the victims have no constituency in the capitals where the relevant decisions are made. That is the hardest kind of crisis to change, and the most important kind to understand.

AH
Editor, Sudan and South Sudan. Amira Hassan specializes in conflict, humanitarian affairs, and governance in Sudan and South Sudan. She has reported on the SAF-RSF war since its first week and focuses particularly on civilian impact and the politics of humanitarian access.
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