Sudan: SPLM–RSF Alliance Advances Toward Blue Nile Capital Damazin
On 26 April 2026, joint forces of the Sudan People’s Liberation Movement (SPLM) and the Rapid Support Forces (RSF) captured the town of Kayli in Blue Nile State, following the earlier fall of Kurmuk. The advance, reported on 28 April, appears to be the start of a gradual push toward Damazin, the state capital.
Key Takeaways
- Joint SPLM/RSF forces captured Kayli in Blue Nile State on 26 April 2026, after taking Kurmuk.
- The advance suggests a coordinated campaign aimed at the strategic state capital, Damazin.
- Control of Blue Nile State would carry major implications for Sudan’s internal power balance and humanitarian situation.
- The offensive underscores the fragmentation of authority and deepening complexity of Sudan’s civil war.
According to field reports published on 28 April 2026 at 10:01 UTC, a joint force comprising elements of the Sudan People’s Liberation Movement (SPLM) and the Rapid Support Forces (RSF) captured the town of Kayli in Blue Nile State on 26 April. This followed the earlier seizure of Kurmuk, near the Ethiopian border, and marks a clear progression of anti‑government forces northwards along routes that lead toward Damazin, the capital of Blue Nile State.
The offensive on the Blue Nile front is part of the broader Sudanese civil war that erupted into full‑scale nationwide conflict in 2023. The RSF, originally a paramilitary offshoot of the Sudanese security apparatus, has since become one of the principal belligerents against the Sudanese Armed Forces (SAF). Its collaboration with elements of the SPLM in Blue Nile reflects the opportunistic alliances forming among armed groups with diverse agendas but a shared interest in weakening central authority.
Kayli’s capture is operationally significant due to its location on routes that can be used to project force toward Damazin and to control border and trade corridors. Kurmuk, taken earlier, is an important border crossing with historical strategic relevance during previous Sudanese conflicts. By holding both Kurmuk and Kayli, the SPLM–RSF alliance gains a foothold from which it can threaten the state capital, interdict movements, and potentially cut off SAF units or administrative centres.
Key players in this theatre include the RSF leadership, SPLM commanders in Blue Nile, the SAF and allied militias, and the civilian population of Blue Nile State, which has endured cycles of conflict and displacement for decades. The SAF is likely to attempt counter‑attacks or reinforcement of Damazin and nearby garrisons, but its forces are already stretched across multiple fronts, including Darfur, Kordofan, and urban centres such as Khartoum and Omdurman.
The capture of Kayli matters for several reasons. Militarily, it signals that the RSF and aligned groups retain offensive momentum in peripheral regions and can exploit SAF weaknesses outside headline battlefields. Politically, it undermines the central government’s claim to effective control over large swathes of the country and may embolden other armed factions to expand their own areas of influence. For local communities, renewed fighting threatens to trigger fresh displacement, disrupt agriculture and trade, and increase exposure to abuses by armed actors.
Regionally, developments in Blue Nile carry implications for neighbouring states, notably Ethiopia and South Sudan. Control over border crossings and corridors can facilitate cross‑border arms flows, smuggling, and refugee movements, potentially destabilising border regions. The presence of SPLM elements also resonates with South Sudanese politics and long‑standing cross‑border ethnic and political ties.
Outlook & Way Forward
Over the short term, the joint SPLM–RSF force is likely to consolidate positions in Kayli and Kurmuk while probing SAF defensive lines closer to Damazin. Whether they attempt a direct assault on the capital will depend on their assessment of SAF strength, local support networks, and logistical capacity. A gradual encirclement or isolation of Damazin, combined with political messaging to local communities, is plausible before any large‑scale attack.
The SAF, facing simultaneous threats on multiple fronts, may be forced to reprioritise deployments. Indicators of its intent will include reports of reinforcements flown or driven into Blue Nile, increased use of airpower, and mobilisations of aligned militias. However, any concentration of forces in Blue Nile could weaken government positions elsewhere, creating further openings for rivals.
Humanitarian agencies and regional organisations should prepare for a potential surge in displacement from Blue Nile if fighting approaches Damazin and other urban centres. Access constraints, insecurity, and fragmented authority will complicate aid delivery. Diplomatically, the advance underscores the urgency of renewed international engagement to negotiate at least localised ceasefires and humanitarian corridors, even as a comprehensive political settlement remains distant. Observers should watch for signs of further alliances among armed groups in peripheral regions, as these coalitions will shape the trajectory of Sudan’s fragmentation and the prospects for eventual stabilisation.
Sources
- OSINT