Lebanon's government has committed to a multi-phase plan to disarm Hezbollah and other non-state actors in the south, with the army saying phase one is complete and at least four months needed for phase two. This forecast examines how that plan may reshape security, sovereignty and regional dynamics over the next fifty years.
Verdict: The Lebanese army reports completing the first phase of its plan to bring all non-state weapons south of the Litani River under state control, while Israel calls progress insufficient (AlJazeera, 2026-01-08). Cabinet statements and allied commentary describe a multi-phase "Homeland Shield" approach extending north to the Awali River (TheNational, 2025-12-10). A new government briefing says phase two will require at least four months and depends on Israeli attacks and on-the-ground constraints (ArabNews, 2026-02-17). External partners are linking future military aid and post-UNIFIL security arrangements to credible disarmament steps (AP, 2026-02-16).
The Lebanese army gradually consolidates control from the border up to the Awali River with minimal renewed large-scale fighting. Hezbollah transitions further toward a primarily political movement, retaining limited residual arms under negotiated arrangements but ceasing cross-border attacks. International support, including for post-UNIFIL security, reinforces state institutions, and border incidents fall to low, manageable levels over a decade.
Phase two proceeds slowly and unevenly, with the army expanding its presence but Hezbollah retaining covert capabilities and influence north of the Litani. Israel continues intermittent strikes and intelligence operations, while both sides mostly observe ceasefire lines but engage in periodic escalations. Lebanon muddles through, with partial state authority, chronic risk and heavy reliance on external financial and diplomatic support.
Political backlash and regional tension derail the disarmament plan, leading Hezbollah to harden its positions and rearm more openly. A serious incident-whether miscalculation or deliberate-triggers a new round of high-intensity conflict that devastates southern Lebanon and prompts large-scale displacement. State institutions weaken further, and external actors reconsider aid, leaving security fragmented and volatile for years.
A broader regional realignment, such as an unexpected Iran-Gulf-Western understanding or a new security architecture, changes Hezbollah's incentives more than local pressure alone. Alternatively, severe internal crisis or leadership change within Hezbollah or Israel reshapes doctrines on deterrence and cross-border operations. These shifts could either accelerate demilitarisation or provoke radicalisation that current plans do not anticipate.
Developments: Within a year, the army's efforts between the Litani and Awali rivers will reveal how feasible the second phase is in practice. Cabinet updates, local reporting and international monitoring will indicate whether non-state weapons caches are truly being removed or merely relocated. Discussions about the future of UNIFIL and possible replacement arrangements will intensify as its mandate nears expiration.
Risks: Israeli strikes in southern Lebanon, including areas under active army operations, could undermine public support for the disarmament plan and strain military capacities. Hezbollah may resist inspections or redeploy assets, testing the army's willingness to confront it directly. Domestic political crises or economic shocks could cut resources for security operations and governance in the south.
Outlook: Over one year, the central question is whether phase two achieves noticeable, verified changes in weapons presence and incident patterns. Limited but real progress is compatible with the baseline. A sharp escalation or political collapse would quickly push outcomes toward the adverse scenario.
Developments: By year two, patterns of daily life in southern communities will better reflect whether the Lebanese state is perceived as the primary security provider. The army's operational posture, including its ability to patrol and respond without parallel command structures, will be clearer. Negotiations over post-UNIFIL security frameworks will likely have produced either a new arrangement or a more direct confrontation along the border.
Risks: If cross-border incidents and assassinations continue at a high tempo, residents may see little benefit from the disarmament plan and lose trust in Beirut. Failure to secure sustainable funding and training could degrade the army's readiness and morale. Deepening regional rivalries might turn Lebanon into a more explicit proxy battleground, making incremental disarmament politically untenable.
Outlook: Two years out, the baseline assumes a fragile equilibrium with the army more visible but Hezbollah still influential. Reduced incident severity and better local governance would suggest cautious improvement. Continued high-intensity clashes or visible parallel authorities would signal that the plan is stalling.
Developments: Within three years, political bargains around Hezbollah's role in government, security and the economy will heavily influence the disarmament trajectory. The army may either be acknowledged as the uncontested force in officially demilitarised zones or remain one actor among several. International donors and financial institutions will increasingly tie broader economic packages to credible governance and security reforms.
Risks: If economic collapse deepens, public anger could be channelled either against Hezbollah, the political establishment or both, destabilising any security arrangements. A change in leadership in key regional capitals could alter external support and pressure on all sides. Failure to integrate southern communities economically and politically could make them more receptive to non-state armed control.
Outlook: Three years is a point where either incremental security gains consolidate into a new normal or erode under political and economic strain. The baseline expects a continued, messy coexistence of state and non-state influence. A sharp break in either direction would indicate movement toward the best-case or adverse scenarios.
Developments: By five years, an enduring security architecture will likely have emerged, whether centered on the Lebanese state, shared arrangements or renewed confrontation. The disposition of Israeli forces at remaining contested points, and the extent of Hezbollah's visible military footprint, will be key indicators. Cross-border trade, reconstruction and infrastructure investment will show whether the south is treated as a stable hinterland or a frontline.
Risks: If unresolved territorial and refugee issues remain, spoilers could use them to justify rearmament or attacks despite formal agreements. Donor fatigue might reduce resources for both security and development, leaving underlying grievances unaddressed. A new regional war involving Iran or other actors could pull Lebanon back into widespread conflict regardless of local progress.
Outlook: At five years, the baseline envisions a still-fragile but somewhat institutionalised balance, with periods of calm punctuated by limited escalations. Stronger state services and economic activity would support gradual improvement. Conversely, stalled reconstruction and persistent militarisation would keep the region trapped in cyclical crises.
Developments: In ten years, Lebanon could either have gradually strengthened national institutions, including the army and judiciary, or slid further into a patchwork of fiefdoms. The role of Hezbollah may evolve toward a more conventional party with residual security influence, or remain that of a dominant armed actor. Regional alignments, energy development and migration patterns will reshape incentives for stability or confrontation.
Risks: Protracted economic decline or climate-related stresses could undermine governance capacity and fuel recruitment into armed groups. If regional powers continue to compete in Lebanon through proxy networks, disarmament progress could reverse. Failure to address corruption and impunity may erode any legitimacy gains from earlier security efforts.
Outlook: Over ten years, the baseline expects neither full consolidation nor full collapse, but a hybrid system with periodic renegotiation of power. Significant improvements in livelihoods and institutions would tilt the trajectory toward the best case. Severe shocks or sustained external meddling would increase the chance of renewed large-scale conflict.
Developments: Two decades on, a new generation will have grown up with either a memory of recurring wars or a long stretch of uneasy peace. Social attitudes toward armed parties, state institutions and regional alliances may shift, altering the political feasibility of deep disarmament or rearmament. Infrastructure, demographic trends and climate impacts along the southern border will shape both vulnerabilities and opportunities.
Risks: If historical grievances remain unresolved and economic prospects dim, younger cohorts may be drawn to more radical movements, undermining partial gains. Alternatively, if regional polarisation hardens, external actors might again instrumentalise Lebanese factions. Environmental degradation or resource shocks could strain border communities and security arrangements.
Outlook: At twenty years, uncertainty grows, but the baseline imagines a Lebanon still negotiating the balance between pluralism and central authority. The south's security situation will reflect cumulative choices about governance, development and alliances. Transformative regional deals or crises could quickly invalidate prior assumptions.
Developments: Half a century from now, Lebanon's 2020s disarmament efforts may be remembered either as the start of a slow consolidation of state authority or a missed opportunity before further fragmentation. Archival records and lived memories will inform how the role of Hezbollah, the army and external powers is judged. Broader regional political and economic integration or disintegration will heavily colour that narrative.
Risks: Deep structural uncertainties-technological change, climate disruption, regional wars or political realignments-limit confidence in any specific path. If institutions remain weak, Lebanon could face repeated cycles of state failure and external intervention. Conversely, if more robust governance emerges, earlier conflicts may be seen as a distant historical phase.
Outlook: Over fifty years, the forecast emphasizes patterns rather than precise events. It is plausible that southern Lebanon evolves toward more normalised, though never fully risk-free, border relations. Equally, unresolved structural drivers could keep the area vulnerable to periodic violent shocks.