UN Security Withdrawal from Somalia and the Prospect of a Widening Security Vacuum

Executive Summary

The United Nations is proceeding with its mission withdrawal from Somalia, aiming to hand over human rights monitoring functions by October 2026, with the Security Council-mandated mission facing a de facto deadline of December 31. This handover timeline was set irrespective of the maturity of local security capabilities, and in South West State, al-Shabaab and forces loyal to Lafta-Gareen still control territory. Kenya and Ethiopia, the largest troop-contributing countries, face the burden of reduced UN financial support amid an economic crisis sparked by the Iran war. Compounded by the crisis in the Red Sea and Gulf of Aden shipping lanes, a maritime security vacuum has also become structural. The baseline scenario, in which the withdrawal deadline is applied without major adjustments, is considered most likely (55% probability), and the security vacuum is expected to widen not uniformly across the country but with regional variations. While South Korea has low direct stakes, it needs to establish a phased monitoring system to address risks to maritime shipping routes and to position its diplomatic channels with Africa.

I. Analysis of the Current Situation

UN Security Withdrawal from Somalia: Growing Concerns over a Security Vacuum

1. Background and Developments

The United Nations aims to conclude its activities in Somalia by October 2026 [7]. The UN Transitional Mission in Somalia (UNTMIS) is in the process of handing over its human rights monitoring, documentation, and reporting duties to Somalia's Independent National Human Rights Commission [7]. On September 15 in Mogadishu, Commission Chairperson Dr. Maryan Qasim and UNTMIS Head Laysdon Jenenga met to discuss the handover process [7].

This withdrawal schedule is not timed to coincide with the stabilization of Somalia's internal security situation. In South West State, the regional security minister warned residents on September 12 not to approach areas controlled by al-Shabaab and forces loyal to former South West State President Lafta-Gareen [9]. The South West State government announced it was preparing operations against al-Shabaab in the area [9]. This warning reaffirmed that the federal government's effective control is not uniform across different regions.

Concurrently, the maritime and regional security environment surrounding Somalia has deteriorated sharply. Since the outbreak of the Israel-Iran war in February 2026, Houthi rebels have resumed attacks in the Red Sea and the Bab el-Mandeb Strait, leading to the redeployment of international naval assets to the Strait of Hormuz and the northern Red Sea [3]. This has created a surveillance vacuum in the Gulf of Aden and the southern Western Indian Ocean, which Puntland-based pirate groups have exploited, leading to a marked increase in vessel seizures since April [3]. In September, the Houthis' seizure of key port cities and islands on Yemen's western coast prompted the Somali business community to reconsider its traditional import routes via the Gulf [4].

2. Current Situation

December 31 is being cited as the de facto withdrawal deadline for the UN Security Council-mandated mission [1]. Hiiraan Online describes this withdrawal as a "scaffolding collapse," pointing to the risk that a rapid drawdown will leave a security vacuum in its wake [1]. The point that international partners must recognize is that neither an orderly transition nor a continued presence is viable without sustainable financial support [1].

Military planning circles in Kenya and Ethiopia view the December 31 deadline with concern [1]. Both Nairobi and Addis Ababa have committed their own troops to operations against al-Shabaab. The core of this concern is the possibility that the reduction in UN support will directly transfer the burden to these troop-contributing countries.

Moves by the United States are also notable. President Trump has nominated Devin Kennington as the new ambassador to Somalia [12]. The position had been vacant since the recall of the previous ambassador, Richard H. [12]. The resumption of the ambassadorial appointment process can be read as a signal that Washington has not completely disengaged from Somalia, but whether this will translate into an actual increase in security assistance is a separate issue.

3. Key Actors and Positions

Kenya and Ethiopiaare the largest contributors of troops to Somalia through the African Union mission. A reduction in UN financial support translates directly into the burden of sustaining operations with their own national budgets [1]. Kenya is also grappling with a domestic economic crisis, compounded by shocks to oil and fertilizer prices stemming from the Iran war [2]. Under these financial conditions, shouldering the additional burden of operations in Somalia is a politically difficult choice.

Egypthas approached the issue of Somali security by linking it to its broader stability agenda for the North Africa-Red Sea axis, including Libya and Sudan. Egypt's emphasis, along with Tunisia, on a "Libyan-led political solution" to the crisis in Libya [13], and its alignment with the UAE's position advocating for an expanded arms embargo on Sudan [15], both demonstrate that Cairo seeks to manage regional security vacuums as an extension of its own national security agenda. Egypt's concerns about the Somalia withdrawal deadline also stem from this perspective [1].

The Somali Federal Government and South West Stateface the dual burden of accepting the handover of the UN's human rights monitoring function [7] while also preparing their own operations against the allied forces of al-Shabaab and Lafta-Gareen [9]. The federal government is thus facing a reduction in UN support at a time when it has yet to fully establish security control even at the local administrative level.

United Nationsis pushing for the mission's termination in October through UNTMIS [7], focusing on the procedural handover of human rights monitoring tasks to the local commission. However, as Hiiraan Online points out, the fact that this handover is proceeding without a sustainable financial foundation remains a problem [1].

United Stateshas signaled diplomatic engagement by resuming the ambassadorial appointment process [12], but a Brookings analysis warns of the risk that U.S. engagement in Africa could weaken as its strategic focus shifts to the Iran war [8]. The core concern of this analysis is that China, France, Russia, the UAE, and India are filling the vacuum left by the U.S. and expanding their influence in mineral, trade, and security partnerships [8].

4. Key Issues

The first issue is financing. If the UN withdrawal is designed solely as a political handover process without a corresponding financial support mechanism, the handover itself is likely to be merely a formality [1].

The second issue is the transfer of the regional security burden. If a structure becomes entrenched where Kenya and Ethiopia must shoulder additional costs for operations in Somalia amid their own economic difficulties, the very will of these countries to continue their troop deployment could be shaken [1][2].

The third issue is the simultaneous deterioration of maritime and internal security. The combination of increased piracy in the Gulf of Aden and the spread of al-Shabaab in South West State means that threats surrounding Somalia are growing simultaneously on both land and sea [3][9]. The fact that the UN withdrawal coincides with this dual-threat situation is fueling the concerns of regional countries.

II. In-Depth Analysis

UN Security Withdrawal from Somalia: In-Depth Analysis

1. Analysis of Root Causes

The ostensible justification for the withdrawal decision is the normal procedure for concluding a UN mission. UNTMIS is proceeding with the handover of human rights monitoring duties to Somalia's Independent National Human Rights Commission, with a target completion date of October [7]. However, this timetable was established irrespective of the maturity of local security capabilities in Somalia. In South West State, al-Shabaab and Lafta-Gareen forces still control certain areas, and the federal government is only in the preparatory stages of military operations against them [9]. In effect, an administrative deadline for withdrawal has been set before the establishment of local security capacity, which should be the basis for the handover.

A more fundamental cause is financing. Hiiraan Online frames the issue as the "danger of a handover without sustainable financial support" [1]. This points to the international community's contradictory stance of wanting to maintain the political commitment to supporting Somali security while simultaneously reducing the necessary financial burden. This is not an issue confined to Somalia alone. It is also a consequence of the Horn of Africa, including Somalia, being deprioritized as international security and financial resources are rapidly redeployed to Hormuz and the northern Red Sea following the Israel-Iran war [3][8]. The Brookings Institution points out that while the Iran war structurally relegates U.S. engagement with Africa to a lower priority, China, France, Russia, the UAE, and India are filling the resulting vacuum [8].

2. Structural Context

Political Context

The effective control of the Somali federal government varies significantly by region. As seen in the case of South West State, even the human rights commission designated to receive the handover of duties from the central government is still in the phase of building its own capacity [7][9]. If the UN withdraws under these circumstances, it is likely that a vacuum in monitoring, documentation, and reporting functions will first appear in certain regions. The connection between al-Shabaab and regional political forces is also a problem. The dynamic of forces loyal to former South West State President Lafta-Gareen operating in the same area as al-Shabaab demonstrates that resistance to the central government by regional elites can merge with armed militancy [9].

Economic Context

The simultaneous deterioration of the financial capacity of regional troop-contributing countries exacerbates the structural vulnerability. Kenya is facing a domestic economic crisis due to shocks in oil and fertilizer prices stemming from the Iran war [2]. Kenya and Ethiopia, the largest troop contributors to the African Union mission, could find themselves in a situation where they must self-fund their operations in Somalia amid their own economic hardships [1]. The convergence of declining UN financial support and the shrinking financial capacity of troop-contributing countries is not a coincidence, but the result of a single event—the Iran war—reverberating simultaneously through multiple channels.

Security Context

The simultaneous emergence of security vacuums at sea and on land is also a structural feature. The increase in seizures by Puntland-based pirates exploiting the surveillance vacuum in the Gulf of Aden and the Western Indian Ocean has been evident since April [3]. In September, the Houthis' seizure of port cities and islands on Yemen's western coast led the Somali business community to reconsider its shipping routes via the Gulf [4]. If the spread of maritime risks coincides with the UN's withdrawal from land, Somalia will be in the position of having to manage security vacuums on both sea and land simultaneously.

3. Historical Precedents and Comparative Cases

There are precedents in Somalia's own history of an abrupt end to a UN mission leading to a security vacuum. The early withdrawal of the UN Operation in Somalia (UNOSOM) in the early 1990s is a recurring reference point in local Somali discourse, cited as a backdrop to the subsequent decade-plus of civil war and state failure. Hiiraan Online's use of the phrase "scaffolding collapse" to describe the current UNTMIS withdrawal [1] can be read as an evocation of this historical memory, using the image of an entire structure collapsing when its supports are suddenly removed.

Similar experiences also inform the concerns of Kenya and Ethiopia regarding the December 31 deadline. The African Union mission (the system that transitioned from AMISOM to ATMIS) has already undergone several troop reductions and financial crises, and each time a pattern has repeated: al-Shabaab's sphere of activity temporarily expands. The current UN withdrawal reminds troop-contributing countries of the concern that this pattern could reemerge [1].

The maritime security vacuum is another case in point: Somali piracy, which had been suppressed by combined international naval operations in the early 2010s, has reemerged due to the single external shock of the Israel-Iran war [3]. This demonstrates not that the suppression regime itself was weak, but rather a structural vulnerability: the vacuum can reappear whenever surveillance assets are shifted to other crisis zones. The UN mission withdrawal can be understood through the same logic. The Somali security apparatus appears stable only as long as external support is maintained; it has not achieved self-sufficiency.

4. Key Variables Shaping Future Developments

The first variable is whether the December 31 deadline is actually implemented. As Hiiraan Online points out, if the international community fails to resolve the financial support issue at this juncture for "either an orderly transition or a continued presence," the deadline itself could directly lead to a vacuum [1]. The subsequent trajectory will differ greatly depending on whether the deadline is maintained while leaving a financial vacuum, or whether the deadline is postponed or support is continued, even in a reduced form.

The second variable is the independent financial capacity of Kenya and Ethiopia. The extent to which Kenya can manage the economic crisis stemming from the Iran war [2] will be a practical constraint determining whether the African Union mission can maintain its troop levels. Another point to watch is whether the domestic politics of the troop-contributing countries can continue to secure public support for overseas deployment budgets.

The third variable is the level of U.S. engagement. President Trump's nomination of a new ambassador is a signal that Washington has not completely disengaged from the Somalia issue [12]. However, whether this remains at the level of a diplomatic symbol or leads to actual security assistance budgeting is a separate matter. As the Brookings Institution has noted, the dynamic of other actors like China and the UAE expanding their engagement in Africa while U.S. attention is focused on the Iran war could also apply to Somalia [8].

The fourth variable is the trajectory of the maritime security situation. If the Houthi control of Yemen's western coast continues and the surveillance vacuum in the Gulf of Aden becomes entrenched, Somalia will face the dual burden of managing the threat of al-Shabaab on land and the risks of piracy and shipping lane disruptions at sea [3][4]. The temporal overlap of these two threats itself creates a condition that will test the response capabilities of the Somali government and regional troop-contributing countries.