Foreign Support Is Reshaping Sudan’s War

Sudan’s war is becoming more technologically sophisticated and more externally sustained, with foreign fighters, drones, weapons and logistical networks expanding the capabilities of both the Sudanese Armed Forces (SAF) and the Rapid Support Forces (RSF).

A new UN investigation underscores how outside support is changing the character of the conflict, extending strike range, sustaining military operations and complicating efforts to bring the war to an end.

The conflict, which began in April 2023, remains fundamentally a struggle between domestic armed forces. But its military trajectory is increasingly being shaped by resources, technology and personnel moving across borders.

Drone warfare expands the battlespace

One of the most consequential shifts has been the rapid growth of drone warfare.

Both the SAF and RSF are increasingly using drones to strike targets well beyond traditional frontlines, expanding the geographic reach of the conflict and placing infrastructure, population centers and supply networks at greater risk.

More than 1,000 people were killed in drone attacks during the first half of 2026.

UN investigators documented strikes on hospitals, markets, schools, displacement sites and essential infrastructure, with some incidents potentially amounting to war crimes.

The operational significance extends beyond individual attacks. Long-range and increasingly accessible drone systems allow both sides to impose costs without controlling territory, creating a more dispersed battlefield and making rear areas, logistics hubs and critical infrastructure increasingly vulnerable.

Repeated attacks around El Obeid, a strategically important transport and logistics hub in North Kordofan, illustrate the shift. Damage to electricity, fuel and other infrastructure has disrupted essential services while increasing pressure on a city critical to routes linking Darfur with central Sudan.

Foreign networks sustain military capacity

The UN investigation also identified cross-border networks involved in recruiting personnel, moving military equipment and providing logistical support.

Investigators found reasonable grounds to believe that foreign personnel and entities helped provide weapons, training and logistics to the RSF.

Colombian contractors were identified as playing roles in operating and maintaining drones and other advanced weapons, with the mission estimating that their numbers could approach 2,000.

The investigation identified routes and networks involving the United Arab Emirates, Chad, Libya and Somalia.

The UAE has repeatedly denied providing military support to the RSF. Chad has denied facilitating weapons transfers and maintains that it is neutral in the conflict.

The UN mission’s investigation into external support for the SAF remains less developed, but it found indications that foreign-supplied drones and other systems have expanded the army’s long-range strike capability.

External support changes the strategic equation

The growing role of foreign support is making battlefield exhaustion less decisive.

Access to weapons, technology, contractors and logistics allows armed forces to replenish capabilities even as Sudan’s domestic infrastructure and economy deteriorate. That can reduce pressure on belligerents to compromise and make ceasefire efforts more difficult to sustain.

The conflict also reflects a broader change in modern warfare. Drones and commercially available or dual-use technologies are lowering the threshold for long-range strike capabilities, including in fragile states and conflicts where conventional air power is limited.

For governments, that creates a more complex enforcement challenge. Traditional arms controls and sanctions may have less effect when military capability also depends on components, private contractors, transport corridors, financial networks and logistics infrastructure spread across multiple jurisdictions.

Pressure turns to external supply networks

The UN Fact-Finding Mission has called for stronger enforcement of the existing arms embargo on Darfur and urged the UN Security Council to consider extending it across Sudan.

Investigators also called on governments to prevent military transfers where there is a substantial risk they could contribute to serious violations of international law and to investigate individuals and entities involved in illicit support networks.

The findings increase the likelihood that international attention will focus more heavily on the infrastructure surrounding the war, including drone supply chains, recruitment networks, logistics routes and financial facilitators.

Sudan’s War remains rooted in the struggle between the SAF and RSF. But the growing role of external military support means its duration and intensity are increasingly influenced by decisions made beyond Sudan’s borders.

That leaves governments facing a broader strategic challenge: diplomatic pressure on the combatants may have limited effect if the foreign networks supplying technology, personnel and military capacity remain intact.