Sudan’s war hits year four—UN demands arms stop as Khartoum’s fragile return raises new risks

On April 15, 2026, multiple outlets revisited Sudan’s grinding conflict as it entered its fourth year, with the UN and journalists focusing on both the battlefield reality and the humanitarian toll. Al Jazeera reported that UN Secretary-General Antonio Guterres urged an end to the flow of weapons into Sudan, pleading for a halt to arms trafficking around the war’s third anniversary. Repubblica published longform reporting and a practical explainer on what has changed over three years, including the split between the Sudanese Armed Forces and the rival Rapid Support Forces. Al-Monitor added a human and operational detail: Sudanese returnees in Khartoum described relief after three years, while a pilot, Mohamad Daafallah, was shown greeting passengers upon landing at Khartoum Airport—an airport that had been bombed to “shreds” at the outbreak of the war. Geopolitically, the core issue is not only the duration of fighting but the external enabling environment that sustains it—arms flows, financing channels, and the incentives of regional and international actors to keep leverage rather than impose durable constraints. Guterres’ call frames the conflict as a governance and security failure with cross-border consequences, implying that stopping weapons shipments could be the fastest lever to reduce battlefield tempo and bargaining power for the armed factions. The power dynamics remain centered on the contest between the Sudanese Armed Forces (regular military authority) and the RSF (paramilitary territorial influence), with Khartoum as the symbolic and logistical prize. The return of some civilians to the capital, even if partial, can strengthen political narratives for whichever side appears capable of restoring normalcy, while also increasing the risk of renewed clashes around infrastructure and transport nodes. Market and economic implications are indirect in these articles but still material: prolonged conflict in Sudan typically disrupts food supply chains, banking access, and internal logistics, which in turn affects regional commodity availability and risk premia for shipping and insurance. The focus on arms trafficking and cease-arms demands signals potential future tightening of cross-border trade in military goods, which can spill into broader sanctions enforcement and compliance costs for regional traders. Khartoum Airport’s operational status—highlighted through the returnees’ landing—points to a fragile lifeline for humanitarian flights and high-value passenger movement, which can influence local currency liquidity and aid procurement cycles. While the articles do not quantify price moves, the direction of risk is clear: any renewed escalation would likely worsen inflationary pressures through supply shocks, while successful arms interdiction would be a modest tailwind for stabilization expectations. What to watch next is whether the UN’s “stop the arms flow” message translates into measurable interdiction and enforcement actions, not just statements, especially as the conflict approaches the fourth-year threshold. Key indicators include reported arms shipment routes, changes in ceasefire compliance around Khartoum and other contested cities, and whether humanitarian corridors and airport operations expand or contract. The returnees’ experience at Khartoum Airport should be treated as a leading signal for security conditions: if landings and ground access remain possible, it suggests at least tactical de-escalation; if flights are disrupted, it would indicate renewed fighting or targeting of transport infrastructure. A practical trigger point is any public UN follow-up on arms trafficking mechanisms and named enforcement partners, alongside updates on the operational footprint of both the Sudanese Armed Forces and the RSF in and around the capital. Over the next weeks, the balance between partial normalization and renewed bombardment will determine whether the conflict’s trajectory is stabilizing or volatile.

Geopolitical Implications

• 01

  Arms interdiction is the fastest potential lever to reduce violence and shift incentives toward negotiations.

• 02

  Control of transport nodes like Khartoum Airport can shape political narratives and bargaining power.

• 03

  Ongoing arms flows keep the fourth-year phase volatile and raise the risk of renewed attacks on logistics.

Key Signals

• —Measurable enforcement steps following the UN “stop the arms flow” appeal.
• —Flight continuity and ground access at Khartoum Airport as a security barometer.
• —Reported changes in arms shipment routes and ceasefire compliance around contested cities.