| CASE STUDY Anchored in the Iran-Israel-US Conflict, 2025–2026March 2026 |
Executive Summary
The Israeli-American military campaign against Iran—dubbed Operation Epic Fury—marks an inflection point in Middle Eastern geopolitics unseen since the 2003 Iraq invasion. The killing of Supreme Leader Ali Khamenei has destabilised the Islamic Republic’s architecture of power, triggering a tripartite scenario matrix: democratic revolution, authoritarian reconsolidation (the ‘Venezuela model’), or descent into civil war. Each trajectory carries profoundly different implications for regional order and, critically, for Singapore’s economic and strategic interests.
This case study traces the historical evolution of Middle East power dynamics, analyses the three post-Khamenei scenarios, and derives structured recommendations for Singapore—a small, open, trade-dependent city-state whose prosperity is acutely sensitive to regional instability.
1. Historical Shifts in Middle East Power Dynamics
1.1 The Post-Ottoman Order (1920–1979)
The modern Middle East was constituted through colonial cartography. The Sykes-Picot Agreement (1916) and subsequent League of Nations mandates partitioned the former Ottoman domains into British and French spheres, drawing borders that frequently overrode ethnic, tribal, and sectarian realities. The resulting states—Iraq, Syria, Lebanon, Jordan—lacked organic political cohesion, a fragility that would haunt later conflicts.
The 1948 Arab-Israeli War inaugurated the Israeli-Arab state conflict, while the 1956 Suez Crisis signalled the end of European imperial primacy and the ascent of American and Soviet patronage networks. Iran under the Pahlavis occupied a pivotal role as a Western-aligned monarchy and regional gendarme, controlling the Persian Gulf energy chokepoint.
1.2 The 1979 Revolution and the Axis of Resistance
The Islamic Revolution fundamentally reordered regional alignments. Iran pivoted from American ally to the standard-bearer of anti-Western political Islam, constructing what would become the ‘Axis of Resistance’: a network of state and non-state actors including Hezbollah in Lebanon, Hamas in Gaza, the Houthis in Yemen, and Shia militias in Iraq.
This axis was not merely ideological; it was operationally funded and equipped through IRGC structures, providing Iran with strategic depth and deterrence-by-proxy far beyond its conventional military capacity. The Iran-Iraq War (1980–1988) further entrenched IRGC dominance over Iranian state institutions, creating a parallel power structure that would outlast successive elected governments.
| Key Structural InsightIran’s power was never simply state power. It was network power—distributed, resilient, and deeply embedded in regional non-state actors. Decapitating the clerical leadership does not automatically sever these networks. |
1.3 The 2003 Iraq Invasion and the Rise of Iranian Influence
The American dismantling of Saddam Hussein’s Sunni Ba’athist regime inadvertently transferred Iraq’s Shia-majority political space to Iranian influence. The subsequent power vacuum enabled the expansion of Iranian-backed militias (the Popular Mobilisation Units) and deepened Tehran’s strategic reach to the Mediterranean via a ‘Shia crescent’ stretching through Iraq and Syria to Lebanon.
The 2006 Lebanon War and Hamas’s 2007 seizure of Gaza further demonstrated the efficacy of Iran’s proxy model: plausible deniability combined with force multiplication well beyond Iran’s conventional military capabilities.
1.4 The Arab Spring and the Syrian Civil War (2010–2020)
The Arab Spring initially threatened the regional order that both authoritarian regimes and Iran depended upon. However, the Syrian Civil War became the crucible in which Iran—with Russian support—demonstrated its willingness and capacity to wage large-scale proxy conflict to preserve the Assad regime. Iran spent an estimated $30–50 billion sustaining Assad, cementing the Damascus-Tehran corridor.
The Islamic State’s (ISIS) emergence paradoxically reinforced Iranian influence: Shia militias backed by Iran played a decisive role in the counter-ISIS campaign, earning political legitimacy in Iraq and Syria alike.
1.5 The Abraham Accords and the Normalisation Wave (2020–2024)
The Abraham Accords marked a strategic realignment: Gulf Arab states—Bahrain, UAE, Morocco, Sudan, and prospectively Saudi Arabia—began normalising relations with Israel, driven by shared threat perceptions of Iranian expansion and a pragmatic recalibration of the Palestinian issue’s centrality.
This convergence between Israel and Sunni Arab states created the diplomatic preconditions for eventual joint action against Iran. The Saudi-Israeli normalisation negotiations proceeding under US mediation in 2023–2024, however, were complicated by the October 7, 2023 Hamas attack and the subsequent Gaza War, which re-elevated Palestinian grievances as a domestic political constraint for Gulf regimes.
1.6 Operation Epic Fury: The 2025–2026 Escalation
The killing of Supreme Leader Khamenei and the US-Israeli air campaign targeting the IRGC, Basij, and security apparatus represents the most direct external strike at the Islamic Republic’s command structure in its 46-year history. The campaign aims not to occupy Iran but to degrade its internal repression capacity—creating, in the words of one Israeli official, ‘the opportunity for the Iranian people to change the regime.’
| Phase | Action | Strategic Objective |
|---|---|---|
| Pre-war | Abraham Accords, intelligence sharing, normalisation | Build Arab-Israeli coalition, isolate Iran diplomatically |
| Phase I | Targeted strikes on IRGC, Basij, nuclear infrastructure | Degrade coercive capacity and deterrence |
| Phase II | Killing of Khamenei and senior leadership | Decapitate command structure, trigger succession crisis |
| Phase III (ongoing) | Arming Kurdish/Baloch groups, covert pressure | Exploit ethnic fault lines, prevent regime reconsolidation |
2. Scenario Analysis: Three Trajectories for Post-Conflict Iran
Scenario 1: Democratic Revolution (‘Reverse-1979’)
In this optimistic scenario, the degradation of the IRGC and Basij removes the primary mechanism of state repression, allowing Iran’s large, educated middle class and disillusioned technocratic class to mobilise. A largely peaceful street revolution—analogous to Serbia’s October 2000 uprising—consigns the Islamic Republic to history.
Crown Prince Reza Pahlavi returns to preside over a constitutional transition. Iran rejoins the international economic system, sanctions are lifted, and the Axis of Resistance networks atrophy without Iranian logistical and financial support. A Western-aligned Iran transforms the regional security architecture.
| Enabling Conditions RequiredNear-universal public mobilisation; IRGC fragmentation or defection; credible transitional leadership; US/Israeli restraint from direct ground intervention; preservation of state institutions during transition. |
Probability Assessment: Possible but structurally challenging. Iran possesses the civic density and national identity that fragmented Libya and Syria lacked. However, the Islamic Republic’s security apparatus retains significant coercive capacity even under bombardment, and transition periods are inherently vulnerable to spoiler dynamics.
Scenario 2: Authoritarian Reconsolidation (‘Venezuela 2.0’)
The more probable near-term outcome, according to analysts such as Arash Azizi, is that the Islamic Republic’s institutional skeleton survives Khamenei’s death. Mohammad Bagher Ghalibaf and Ali Larijani—pragmatic IRGC-aligned insiders rather than ideological hardliners—manage the succession, select a regime-preserving Supreme Leader, and negotiate a transactional ceasefire with Washington.
The quid pro quo mirrors the Venezuelan model: the regime concedes on nuclear and ballistic missile programmes, ends material support for regional proxies, and accepts some domestic liberalisation (lifting hijab mandates, relaxing alcohol prohibitions). In exchange, the US provides sanctions relief and security guarantees.
| Critical RiskThe injustice of the January massacres (est. 30,000 killed) remains unaddressed. Iranian civil society, fed up with decades of mismanagement and repression, may not accept a ‘deal’ that immunises perpetrators. Renewed protest cycles are near-certain within five to ten years. |
This scenario is strategically convenient for Washington and Jerusalem in the short run but structurally unstable. A rebuilt IRGC under new leadership could reconstitute the nuclear programme and proxy networks within a decade.
Scenario 3: State Fragmentation and Civil War
If neither a democratic transition nor a stable authoritarian successor emerges, Iran faces the risk of state collapse along ethnic fault lines. The country is ethnically heterogeneous: Persians (61%), Azeris (16%), Kurds (10%), Lurs (6%), Arabs (2%), Baloch (2%), and others.
The IRGC’s abandonment of coastal Balochistan in the face of US bombing has already created a vacuum. US-backed Kurdish ground incursion from northern Iraq, endorsed by Trump, risks igniting separatist dynamics across the western mountainous corridor (Kurdish, Azeri, Arab minorities). Mixed urban centres—particularly in western Iran—could descend into neighbourhood-level sectarian violence echoing Aleppo.
| Region | Ethnic Group | Risk Factor | External Patron |
|---|---|---|---|
| Western Mountains | Kurds | Established militant infrastructure; PKK/PJAK nexus | US, implicitly Israel |
| NW Azerbaijan | Azeris | Pan-Azeri nationalism; proximity to Republic of Azerbaijan | Baku (ambiguous) |
| Khuzestan (SW) | Arabs | Oil-rich; tribally armed; adjacent to Iraq | Gulf states (historical) |
| SE Balochistan | Baloch | Active Sunni militant groups (Jaish al-Adl); Dec 2024 consolidation | Pakistan (ambiguous) |
Crucially, civil war need not be the product of ethnic separatism alone. The reconstruction of a functioning armed opposition capable of overthrowing the regime requires military organisation that, absent external coordination, risks devolving into warlordism. A fragmented Iran with multiple armed factions, collapsed state services, and millions of displaced persons would be a humanitarian catastrophe and a regional security black hole.
3. Regional Power Dynamics: Structural Shifts
3.1 Israel
Regardless of Iranian end-state, Israel has fundamentally altered its strategic position. The degradation of Hezbollah in 2024, the attrition of Hamas, and now the decapitation of the Axis of Resistance’s state sponsor represent a generational strategic achievement. Israel enters a post-conflict environment with uncontested air superiority and degraded enemies—but also with heightened international isolation, potential radicalization of populations in Jordan and Egypt, and unresolved Palestinian governance questions that could regenerate a new resistance cycle.
3.2 Saudi Arabia and the Gulf States
The Gulf Cooperation Council states face a paradox: they privately welcome the degradation of Iranian power but must manage their own Shia populations (notably in Saudi Arabia’s Eastern Province and Bahrain) and avoid appearing complicit in an operation that killed tens of thousands of co-religionists. Saudi Arabia’s post-conflict role—as a potential financier of Iranian reconstruction, a sponsor of Sunni political actors in Tehran, or a rival to Turkish/Qatari influence—will be decisive for regional order.
3.3 Russia and China
Both Moscow and Beijing lose a significant partner. Iran was Russia’s principal drone supplier for the Ukraine war; its removal forces Russia to accelerate domestic production. China loses a discounted oil source and a geopolitical lever in US-China competition. Both powers will seek to shape the post-conflict Iranian state’s international alignment, potentially offering reconstruction financing and infrastructure investment (BRI linkages) to a successor government as alternatives to Western dependency.
3.4 Turkey
Turkey occupies a uniquely ambivalent position: a NATO member, a regional Sunni power, opposed to Kurdish militant groups supported by the US, and a longstanding competitor with Iran for regional influence. Ankara will resist US-backed Kurdish state-building at any price, creating a potential NATO fissure. At the same time, Turkey is positioned to project influence into post-Islamic Republic Iran through trade, cultural linkages, and support for Turkic-Azeri communities.
4. Singapore’s Strategic Exposure
4.1 Energy and Commodity Channels
Singapore is one of the world’s premier oil trading and refining hubs. The Strait of Hormuz—the chokepoint through which approximately 20% of global oil trade and 17% of global LNG flows—is directly threatened by regional escalation. Even partial disruption would spike Brent crude prices, increasing refining input costs and insurance premiums for Singapore-based energy traders.
| Exposure Channel | Mechanism | Short-Term Impact | Long-Term Risk |
|---|---|---|---|
| Oil refining (ExxonMobil, Shell) | Hormuz disruption raises crude acquisition cost | Margin compression | Refinery viability |
| LNG re-export | Qatari LNG shipped via Gulf vulnerable to conflict spread | Spot price volatility | Contract renegotiation |
| Shipping & bunkering | War risk insurance spikes; vessel diversions | S$50-150M/month added costs est. | Port competitiveness vs. alternatives |
| Commodity trading (Trafigura, Vitol) | Counterparty risk; sanctions compliance burden | Increased compliance costs | Relocation of trading desks |
4.2 Trade and Supply Chains
Singapore’s total trade is approximately 3.5 times its GDP. The Middle East accounts for roughly 6-8% of Singapore’s total trade, but its importance is asymmetric: Gulf sovereign wealth funds (GIC, Temasek counterparties), petrochemical feedstock imports, and technology exports to Gulf development projects represent high-value linkages disproportionate to raw trade statistics.
Supply chain disruptions affecting the Red Sea and Suez Canal corridor—already stressed by Houthi attacks in 2024—risk further rerouting cargo around the Cape of Good Hope, adding 7-14 days to Asia-Europe voyages and inflating shipping costs borne partly by Singapore-based logistics and port operators.
4.3 Financial Sector Exposure
Singapore has grown into a significant hub for Middle Eastern sovereign wealth management, Islamic finance, and Gulf family office allocations. DBS, OCBC, and UOB, along with Singapore’s private banking sector, hold material exposures to Gulf counterparties. Geopolitical uncertainty and potential sanctions complications in the post-conflict period could trigger capital reallocation or compliance-driven de-risking.
4.4 Strategic and Diplomatic Dimensions
Singapore’s foreign policy is predicated on a rules-based international order, major power balance, and non-interference in sovereign affairs. The US-Israeli military campaign—conducted without UN Security Council authorisation—creates normative discomfort for Singapore. As a small state acutely sensitive to the precedent of great powers acting unilaterally, Singapore must navigate between its security alignment with the US and its principled commitment to international law.
Furthermore, Singapore hosts approximately 13,000 Bangladeshi, Pakistani, and Iranian migrant workers. Social cohesion monitoring and prevention of conflict-linked radicalisation remain ongoing ISD priorities.
| Geopolitical Positioning DilemmaSingapore cannot afford to alienate Washington (its security guarantor and largest FDI source) or Beijing (its largest trading partner), both of whom will compete to shape post-conflict Iran. Maintaining strategic ambiguity while preserving economic optionality requires careful calibration. |
5. Policy Recommendations
5.1 For Regional Actors
Towards Democratic Transition in Iran
- External actors should prioritise creating enabling conditions rather than imposing outcomes—refrain from arming ethnic militias that could trigger civil war dynamics.
- A multilateral contact group (UN-led, including Turkey, Saudi Arabia, EU) should be convened to provide a framework for transitional governance, preventing a power vacuum.
- Transitional justice mechanisms should be established early: immunity deals that bypass accountability for the January massacres will generate long-term instability.
For Gulf States
- Saudi Arabia and UAE should position themselves as neutral reconstruction partners rather than factional sponsors, avoiding the mistake of picking winners in a fluid succession.
- Gulf SWFs should begin scoping post-sanctions investment opportunities in Iranian energy and infrastructure, contingent on political stabilisation milestones.
5.2 For Singapore
Energy and Commodity Risk Management
- Urgently diversify oil import sourcing away from Gulf concentration; accelerate strategic petroleum reserve expansion under EMA guidelines.
- Engage the IEA coordination mechanism proactively; pre-position Singapore as a regional coordinating hub for emergency energy supply in Southeast Asia.
- MAS to issue guidance to financial institutions on war-risk insurance exposure and sanctions compliance obligations relating to Iran-nexus transactions.
Economic Resilience
- EDB to accelerate Gulf diversification—deepen investment ties with Saudi Vision 2030 and UAE’s Operation 300bn to reduce dependency on any single Gulf relationship.
- MTI to model cape-routing scenarios for Singapore port and logistics operators; pre-negotiate contingency vessel berthing arrangements with alternative ports.
- MAS to stress-test Singapore bank exposures to Middle Eastern counterparties and model adverse sovereign wealth fund withdrawal scenarios.
Diplomatic and Strategic Positioning
- Singapore should use its non-permanent UNSC membership (if applicable) or UN General Assembly voice to advocate for a multilateral framework governing post-conflict Iranian stabilisation.
- Maintain back-channel communication with both Iranian successor factions and Gulf partners; leverage Singapore’s reputation as a neutral meeting ground (cf. the 2015 Lee-Xi summit).
- MHA/ISD to intensify community engagement programmes targeting diaspora communities with ties to conflict-affected regions; monitor online radicalisation vectors.
- MINDEF and MFA to undertake joint horizon-scanning exercise on scenarios in which Hormuz closure exceeds 30 days, with full-spectrum economic mobilisation plan.
6. Outlook
The Middle East is entering a period of structural uncertainty that will persist for at least five to ten years regardless of how the immediate conflict in Iran resolves. The three scenarios outlined above—democratic transition, authoritarian reconsolidation, civil fragmentation—are not mutually exclusive and may co-exist temporally or spatially within Iran itself.
What is clear is that the 46-year-old architecture of the Islamic Republic as a coherent state-sponsor of regional resistance has been fundamentally damaged. Even in the Venezuela scenario, a reconstituted Iranian government will require years to rebuild its military-industrial complex, regional networks, and nuclear infrastructure.
For Singapore, the medium-term outlook is one of elevated but manageable risk. The city-state’s institutional resilience, diversified trade relationships, and diplomatic credibility position it to absorb shocks better than most comparably sized economies. The critical variables are: the duration and geographic spread of the Iranian conflict; oil price trajectory; and the degree to which US-China competition over Iran’s reconstruction generates collateral economic and diplomatic pressure.
| Strategic Bottom LineSingapore should treat this conflict not as a crisis to be weathered but as a structural realignment to be navigated—one that will, over a decade, redraw the map of energy geopolitics, great power competition in West Asia, and the rules of the international order to which Singapore’s security and prosperity are anchored. |
Key Sources and Further Reading
Oliphant, R. (2026). ‘How the war in Iran ends.’ The Telegraph, 7 March 2026.
Azizi, A. (2026). Interviews cited in The Telegraph, March 2026.
Hackett, J. (2026). Intelligence analysis cited in The Telegraph, March 2026.
Citrinowicz, D. (2026). Defence intelligence analysis cited in The Telegraph, March 2026.
EIA. (2025). Strait of Hormuz: World Oil Transit Chokepoints. US Energy Information Administration.
MTI Singapore. (2025). Singapore External Trade Statistics, Annual Report.
MAS Singapore. (2026). Financial Stability Review.