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Around the world โ€” Friday morning, 18 September ยท War day 203

Trump Weighs Major Iran Strikes as Tanker Hit in Hormuz Amid UN Diplomacy

President Trump considers resuming large-scale attacks on Iran following a tanker strike in the Strait of Hormuz, as diplomatic efforts intensify at the UN General Assembly.

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What happened, yesterday

The story

Tensions in the Middle East are escalating as President Donald Trump publicly weighs a "big decision" on whether to resume large-scale military attacks on Iran. This consideration follows reports that Iran's Islamic Revolutionary Guard Corps (IRGC) struck a Togo-flagged oil tanker in the Strait of Hormuz, further disrupting vital shipping lanes. As the UN General Assembly convenes, diplomatic efforts are underway, with the US approving visas for Iran's delegation and China actively mediating. However, the prospect of renewed military action looms, especially with Trump scheduled to meet Gulf leaders next week to discuss the conflict's future. Israel, meanwhile, continues to signal its intent to complete its objectives against Iran, suggesting a complex path forward amidst a prolonged 'neither war nor peace' situation. The global community watches closely for any shift in military posture or diplomatic breakthroughs at the UN.

Who moved today

ActorWhat changedConsequence
USPresident Trump stated he is nearing a major decision on whether to resume large-scale military attacks on Iran.This statement signals a potential escalation in military action, keeping regional actors on high alert ahead of UN General Assembly meetings.
IranThe IRGC reportedly struck a Togo-flagged oil tanker in the Strait of Hormuz.This action directly challenges international shipping and exacerbates concerns about the security of global energy flows through the critical waterway.
ChinaForeign Minister Wang Yi held separate diplomatic discussions with both US Secretary of State Marco Rubio and Iranian Foreign Minister Abbas Araghchi.China is intensifying its mediation efforts to de-escalate the conflict and promote the reopening of the Strait of Hormuz.
IsraelPrime Minister Benjamin Netanyahu affirmed that Israel still needs to complete its objectives against Iran and its regional allies.This indicates Israel's continued commitment to military action and a potential for further engagement in the region, regardless of broader diplomatic overtures.
Yemen's HouthisRepresentatives met with US officials in Oman over the weekend.These undisclosed talks suggest a backdoor diplomatic channel is active, aiming to address the group's role in regional hostilities.

Three ways this might unfold

Diplomatic breakthrough at the UN General Assembly leads to a de-escalation framework. ~20%

If UNGA meetings and bilateral talks yield a commitment to a ceasefire and negotiations on the Strait of Hormuz.

  • The US and Iran would likely agree to a mechanism for de-escalation, possibly involving regional mediators.
  • The Strait of Hormuz could see a managed reopening, easing global shipping concerns.
  • International pressure, particularly from China, would support a return to dialogue on nuclear issues.
  • A temporary halt to military strikes from all parties would be implemented.
  • Sanctions relief discussions might begin, contingent on verifiable Iranian commitments.
  • Regional proxies could be urged to reduce hostilities, potentially through mediated agreements.

US resumes large-scale strikes on Iran, leading to widespread regional escalation. ~45%

If President Trump decides to proceed with major military action following his consultations with Gulf leaders.

  • Iran would likely retaliate with further attacks on shipping in the Strait of Hormuz and potentially US bases or allies.
  • Oil prices would surge significantly due to heightened supply disruptions and market uncertainty.
  • Israel would intensify its military campaign against Iranian targets and proxies in the region.
  • The conflict could draw in more regional actors, increasing the risk of a broader war.
  • US military assets and personnel in the Middle East would face increased threats.
  • Diplomatic efforts at the UN and by other nations would be severely undermined.
  • Cyberattacks and other asymmetric warfare tactics from both sides would likely increase.

The current 'neither war nor peace' situation persists with continued limited strikes and economic pressure. ~35%

If diplomatic efforts remain stalled and neither side commits to a significant escalation or de-escalation.

  • Sporadic, targeted strikes would continue from both the US and Iran, maintaining a low-intensity conflict.
  • The Strait of Hormuz would remain partially disrupted, causing ongoing but not catastrophic impact on shipping.
  • Economic sanctions on Iran would continue to exert pressure, but Tehran would maintain its workaround strategies.
  • Regional proxies would continue their activities, leading to localized skirmishes.
  • International mediation efforts would persist but yield no immediate breakthroughs.
  • The US and Israel would continue to replenish depleted military stockpiles.
  • The political rhetoric would remain high, but without a definitive shift towards full-scale war or peace.

Around the world

CountryWhat changedDeduction
๐Ÿ‡บ๐Ÿ‡ธ United StatesHosted G20 energy talks in Houston focusing on 'energy abundance' amidst war-related market disruptions.Washington is attempting to assert its energy leadership and address global supply concerns, while the war's impact on fuel markets remains a key challenge.
๐Ÿ‡จ๐Ÿ‡ณ ChinaForeign Minister Wang Yi held separate discussions with US and Iranian counterparts, urging restraint and Strait of Hormuz reopening.Beijing is actively positioning itself as a key diplomatic mediator to de-escalate regional tensions and protect global trade routes.
๐Ÿ‡ธ๐Ÿ‡ฆ Saudi ArabiaIts Crown Prince Mohammed bin Salman previously pressed President Trump to strike Houthis in Yemen, and the country attended G20 energy talks.Riyadh continues to seek US military action against Iran-backed groups while engaging in international forums to stabilize energy markets.
๐Ÿ‡ท๐Ÿ‡บ RussiaSent officials to the G20 energy meetings in Houston, despite disappointment from Ukraine's European allies.Moscow maintains its presence in key international economic forums, navigating political tensions while engaging on global energy issues.
๐Ÿ‡ฎ๐Ÿ‡ณ IndiaDelegation attended the G20 energy talks in Houston.As a major energy consumer, India is keenly engaged in discussions aimed at securing stable and affordable energy supplies amidst Middle East disruptions.
๐Ÿ‡ฏ๐Ÿ‡ต JapanDelegation attended the G20 energy talks in Houston.Japan, heavily reliant on energy imports, is participating in efforts to mitigate the impact of the Iran war on global fuel markets.

Threads worth pulling

What others are saying

Carnegie Endowment (Aaron David Miller). Despite the US making an argument that its pressure campaign has strengthened its hand, it is not sufficient to leverage a victory in the Iran conflict, indicating no clear exit ramp that resembles a win.

Carnegie Endowment (Christopher S. Chivvis). The Trump administration's refusal to end the war with Iran is working at cross purposes with their effort to end the war in Ukraine, steering into the storm instead of out of it.

The Soufan Center. The scale of economic distress from the US naval blockade and sanctions on Iran is not in doubt, and these conditions are intensifying.

What weโ€™ll be watching

Markets, FX, reserves: fmd-data (). News + analyst voices: grounded via Google Search at publish time.