US-Israeli war with Iran has caused a geopolitical Chernobyl, says fmr. French PM - CNN

Executive Summary

The Israeli Air Force conducted a wave of decapitation strikes in which Supreme Leader Ali Khamenei and several high officials were killed. The conflict has expanded into a regional war spanning multiple fronts: Israeli military activity in Lebanon, Yemen, Syria, and the occupied West Bank proceeded alongside the conflict leaving thousands of people dead in Iran and Lebanon, with millions of people displaced in the region, including more than one-sixth of the population in Lebanon.

On June 15, President Trump announced that a ceasefire deal with Iran has been agreed to, with toll-free shipping through the Strait of Hormuz to resume. The Strait had been largely closed since the U.S. and Israel launched their assault on Iran on February 28. The war has fractured the Middle East's traditional security order and exposed deep structural dependencies in global energy, forcing both immediate ceasefire negotiations and difficult long-term questions about Iran's nuclear program and the future of US deterrence in the region.

The Decapitation Gambit And Succession Uncertainty

On 28 February 2026, Israel and the United States began a series of strikes against Iran, saying they aimed to induce regime change and target its nuclear and ballistic missile programme. The targeting of Supreme Leader Khamenei was intended as a decisive blow to eliminate centralized command authority. However, this strategy created immediate succession complications. Iran appointed Khamenei's son as successor and launched counter-strikes against Israel, US military bases in the region, and military and civilian locations in Arab states. The hasty succession, conducted under wartime pressure and incomplete consolidation of factional loyalties, compounds the uncertainty surrounding Iran's negotiating position and threat credibility during the ongoing ceasefire.

The psychological and organizational impact extends beyond Tehran. By 20 June, HRANA estimated that strikes on Iran had left at least 657 people killed and 2,037 wounded. According to NBC News, the Iranian health ministry states that more than 2,500 people have been wounded. These figures reflect both military targets and civilian casualties, which have driven humanitarian organizations and European governments to demand de-escalation while undercutting the stated objective of neutralizing Iranian command and control without mass civilian harm.

The Strait Of Hormuz: Energy Chokepoint As Strategic Weapon

The effective closure of the Strait of Hormuz represents the conflict's most consequential spillover into global markets. The Strait of Hormuz, through which roughly 20% of the world's oil passes daily, was effectively closed to commercial shipping, triggering an immediate global energy crisis. The interplay between energy supply disruption and security posture creates mutually reinforcing pressure: The current energy crisis, stemming from the effective closure of the Strait of Hormuz, is changing risk perceptions and bolstering moves towards greater diversification. The supply shock is expected to leave a lasting imprint on future investment priorities, particularly in Asia and the Middle East, where the impacts of the disruptions to shipping flows through the Strait of Hormuz have been felt most acutely.

Russia has emerged as the principal short-term beneficiary. The biggest geopolitical beneficiary is Moscow. Russian crude has become one of the few large-scale alternatives available on short notice, giving Moscow a multibillion-dollar windfall and renewed leverage despite sanctions. This economic windfall directly sustains Moscow's military operations in Ukraine, creating a strategic incentive structure for Russia to prevent rapid war termination. Meanwhile, only Chinese-flagged tankers carrying yuan-denominated cargo have been permitted sporadic passage through the Strait, reflecting Beijing's ability to negotiate separate commercial arrangements with Tehran while maintaining strategic distance from direct military involvement.

The broader economic dimension extends beyond oil. Fertiliser supply is particularly exposed. More than 30% of global trade of urea moves through the Strait, along with about 20% of trade of ammonia and phosphate. This creates risks for food prices and security. This connectivity demonstrates how regional military conflict translates directly into food security vulnerabilities in the Global South, compounding inflationary pressures from energy price shocks.

Lebanon As The Ceasefire Pressure Point

The ceasefire framework contains a critical asymmetry that threatens rapid breakdown. After exchanging fire, Israel and Iran are both committing to stop attacks against one another. But Iran issued a key caveat: Israel must also stop its attacks on Hezbollah, its Lebanese proxy in southern Lebanon. This disagreement reflects a fundamental divergence: Iran treats Hezbollah as a non-negotiable asset within its regional deterrent architecture, while Israel views southern Lebanon as a security buffer requiring permanent military presence and offensive capability.

The conflict saw the resumption of hostilities between Israel and Iran's close ally Hezbollah in Lebanon, which had been observing a fragile ceasefire since 2024. Despite the ceasefire, which required the disarmament of Hezbollah and the withdrawal of the Israel Defense Forces from southern Lebanon, Hezbollah had been seeking to restore its military capabilities and the IDF had continued to strike targets in southern Lebanon almost daily. After the opening wave of attacks on Iran on February 28, the IDF conducted air strikes on Hezbollah's infrastructure and warned the militant group against getting involved in the conflict with Iran. On March 2, Hezbollah launched missiles and drones into Israel, prompting an escalation in Israeli air strikes that reached north to southern Beirut.

The ceasefire extension does not resolve this. One of Iran's negotiators, parliament speaker Mohammed Bager Qalibaf, had said any negotiations with the US would be "unreasonable" if the Israel-Hezbollah conflict were to continue. If Israel intensifies military operations against Hezbollah, Iran's political leadership faces pressure to resume strikes, unraveling the 60-day pause within weeks.

Russia And China: Divergent Strategies In The Attrition War

The Iran war has exposed fundamentally different strategic interests between Moscow and Beijing, despite their January 2026 trilateral strategic pact with Tehran. While the US maintains a posture of "Maximum Pressure," Moscow and Beijing are pursuing a strategy of attrition that avoids direct kinetic involvement while ensuring the conflict remains a significant drain on U.S. resources. However, this shared framing masks diverging incentives.

Russia's position is straightforward. Russia, which signed a strategic partnership agreement with the Iranian government in January 2025 and received Iranian military aid for the Russian war on Ukraine, has been sharing intelligence, drone technology and strategy with Iran. This has boosted Iran's response to US and Israeli attacks, compared to the 12-day war. The financial dimension reinforces this. As a global energy exporter, Russia is the primary beneficiary of war-induced price spikes. Current projections suggest the Kremlin could see a budget surplus of over $150 billion in 2026, effectively subsidizing its own regional objectives.

China's strategy is more nuanced and economically driven. While Beijing values its ties with Iran, it has other important partners in the Middle East, such as Saudi Arabia, which supplies more oil to China than Iran. Beijing's Belt and Road Initiative is being integrated with Riyadh's Vision 2030, and the two countries subsequently signed a $50 billion agreement. The trade turnover between China and some Arab states, like the United Arab Emirates, is almost ten times the volume of China's trade with Iran. Accordingly, China has been engaging in direct diplomacy with Tehran to secure safe passage for Chinese-flagged vessels, with over 11 million barrels of Iranian crude continuing to flow eastward in the conflict's first weeks alone, paid for in renminbi through China's Cross-Border International Payment System (CIPS).

The Nuclear Program: Deferred And Unresolved

The ceasefire agreement announces a 60-day pause on military operations but explicitly sidesteps Iran's nuclear program.

This deferral is politically expedient for both sides but strategically fragile. In an interview with The New York Times, Trump said Iran would be permitted low-level nuclear enrichment. In the past, he has repeatedly called for the dismantling of Iran's entire program.

The divergence between Trump's stated casus belli and his actual negotiating position, accepting low-level enrichment rather than dismantlement, signals either tactical flexibility or strategic retreat. Either interpretation weakens US credibility with regional allies who believed regime change or nuclear rollback was non-negotiable. Many of Iran's regional allies have been significant weakened, primarily by Israeli military action from 2023. The failure to convert military advantage into nuclear restrictions leaves the fundamental driver of the conflict, Iranian nuclear capability, unaddressed when the 60-day window closes.

Counterarguments

1. Ceasefire durability may be overstated due to sequencing of contentious issues. The 60-day framework defers the nuclear program and Lebanese proxy arrangements, the two most intractable issues, to the formal negotiation phase. If these emerge as deadlocked by early August, neither side has political capital to extend the pause, and the cycle of strikes resumes. Trump's stated willingness to accept low-level enrichment, if consistent, removes a key escalation trigger, but his inconsistent rhetoric on Iran policy historically has weakened allied confidence that US positions will hold.

2. Russia's incentive to prolong the conflict may override trilateral pact commitments. While the Iran-Russia-China strategic pact (January 2026) theoretically binds the three to coordinated action, Russia's budget benefit from oil at USD 120/barrel exceeds its strategic interest in Iran's survival. If Russia provides just enough intelligence and air defense support to keep Iran in the war without enabling Iranian victory, Moscow maximizes both the duration of price premiums and the opportunity to pin down US military resources. China's early ceasefire preference diverges sharply from this, but China has limited leverage to enforce compliance.

3. Lebanese ceasefire condition may be structurally impossible to resolve without external guarantees. Israel's control of southern Lebanon and its operational freedom against Hezbollah are viewed in Israel as permanent features of the security architecture post-2024. Iran's demand that Israeli strikes on Hezbollah cease is equally non-negotiable for Tehran's domestic legitimacy and deterrent posture. No proposed mediation (US, Egypt, or UN) has bridged this gap in previous negotiations. A third-party military guarantee (e.g., reinforced UN presence or NATO contingent) would be required to decouple the Lebanon issue from the US-Iran ceasefire, but neither side has proposed or accepted such an arrangement.

Indicators To Watch

Decision Relevance

Scenario A (~55% likelihood): Ceasefire holds through 60-day window; nuclear negotiations begin but stall by late August. Both sides see value in the pause to rebuild military capacity and reassess. Trump's willingness to accept low-level enrichment removes a key deadline trigger. However, Israeli operations in Lebanon and differing positions on Hezbollah's future force the Lebanon issue into the formal talks, where it becomes a stumbling block by mid-August. By late August, the ceasefire enters a fragile holding pattern of renewed but contained skirmishes.

Recommended action: Maintain hedged exposure to energy and defense sectors. Do not assume Strait reopening beyond current sporadic passages. Prepare contingency supply-chain protocols for a 3-6 month disruption extension. Monitor Treasury yields for inflation expectations linked to energy prices. Begin evaluating alternative energy supplier relationships (non-Gulf sources) with 180-day implementation timelines.

Scenario B (~30% likelihood): Israeli operations in southern Lebanon escalate sharply; Iran resumes strikes on Israel and US bases by mid-July; ceasefire collapses. Netanyahu's domestic coalition depends on hardline positioning toward both Iran and Hezbollah. If Trump administration pressure to maintain Lebanon restraint encounters domestic opposition in Israel, Israeli operations intensify. Iran interprets this as ceasefire violation and resumes offensive operations, citing the "non-starter" condition rejected by Israel. Strait remains closed; oil rallies above USD 140/barrel.

Recommended action: Accelerate shift to non-Middle Eastern energy contracts. Activate emergency protocols for supply-chain diversification out of GCC-dependent logistics. Increase hedge ratios on energy exposure. De-risk Middle East-dependent equity positions. Prepare for sustained inflation scenario through Q4 2026.

Scenario C (~15% likelihood): US-brokered Lebanon settlement emerges; Iran accepts disarmament framework for Hezbollah; Strait fully reopens by August; nuclear negotiations extend into 2027. A breakthrough on the Lebanon issue, possibly involving Egyptian or UN guarantees for Israeli withdrawal, removes the critical ceasefire pressure point. This allows both Iran and the US to claim victory and extend formal negotiations into 2027 on the nuclear program without resuming large-scale military operations. Strait reopens; oil prices normalize toward USD 80-90/barrel by Q4.

Recommended action: Begin repositioning supply chains back toward Gulf-source logistics. Re-establish Middle East partnerships and hedges. Rotate out of energy hedges as Strait reopening confidence increases. Prepare for lower inflation environment and potential shift in Fed rate expectations. Increase exposure to US shale producers benefiting from price recovery, and GCC oil exporters and financial services.

Analytical Limitations

• Succession legitimacy data remains opaque. The appointment of Khamenei's son to the Supreme Leader position occurred under wartime conditions with restricted international verification. The internal Iranian factional response, particularly from the IRGC, judiciary, and Assembly of Experts, is not fully visible to external analysts. If significant internal opposition emerges to the succession, the negotiating authority and enforcement credibility of Iran's ceasefire commitments would be severely compromised, but such signals may remain private for weeks.

• Israeli domestic political constraints are incompletely observable. Netanyahu's coalition composition and the domestic pressure from far-right coalition members on Hezbollah operations are known broadly but not granularly. The actual decision-making thresholds at which Netanyahu would defy Trump administration pressure on Lebanon operations are unstated. Intelligence access to Israeli cabinet deliberations would substantially improve confidence in predicting Lebanon escalation timing.

• China's decision calculus on conflict extension is underspecified. While the analysis identifies China's preference for rapid termination and economic resilience, the threshold at which Beijing would shift to tacit support for extended conflict (e.g., if US-China competition over Middle East influence intensified) is unclear. Chinese strategic documents do not explicitly state redlines regarding Strait closure duration.

• Trump administration nuclear position lacks internal consistency. The disconnect between Trump's stated rationale for the war (nuclear rollback) and his actual negotiating position (acceptance of low-level enrichment) creates ambiguity about whether this is tactical repositioning or genuine policy shift. If Trump reverses course after the 60-day window, it would undermine the diplomatic foundation of the ceasefire extension.

• Humanitarian and casualty figures from both Iran and Israel are incomplete. Restricted access to Iran following the strikes, combined with information control by Tehran's authorities, means actual death tolls and distribution of civilian versus military casualties remain partially unknown. This limits the ability to assess the human cost driving domestic political pressure for continued military operations or broader ceasefire support.

• Total sources: 18+ distinct outlets covering government statements, think tank analysis, news reporting, and official briefings
• Source types breakdown:
• News/Media: Reuters, NBC News, Al Jazeera, CNN, NPR, AP, AFP (40%)
• Government/Official: UK House of Commons Library, US Congressional Research Service, Chinese Ministry of Foreign Affairs, Pakistan PM statements (25%)
• Think Tank/Academic: Brookings Institution, CSIS, CNA, Hudson Institute, Carnegie Endowment, PRS Group, Kiel Institute (20%)
• Reference/Authoritative: Britannica, Wikipedia, IEA (15%)
• Geographic diversity: US, UK, Iran, Pakistan, regional (Gulf/Middle East), EU, China, Russia
• Evidence quality assessment: Primary sources (official statements, government statements, international organization reports) provide high-confidence baseline on military operations timeline, casualty estimates, and ceasefire framework. Secondary reporting on strategic intent, factional dynamics, and successor legitimacy carries moderate confidence due to information restrictions within Iran and Israel.