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Iran Update, September 18, 2026

ISW · Institute for the Study of War ·

Executive Summary

The Houthis resumed their conflict with Saudi Arabia in July 2026, seeking economic concessions and control over Yemen, with Iranian backing. Iran continues efforts to disrupt regional shipping and pressure the global economy, despite operational constraints. Pakistan is attempting to leverage Iran to curb Houthi actions, though the Houthis maintain operational independence.

Why It Matters

This document provides a timely assessment of ongoing conflicts and strategic maneuvers in the Middle East, crucial for understanding regional stability, energy security, and the interplay of state and non-state actors.

Key Takeaways

  • The Houthis initiated new offensives against Saudi Arabia in July 2026, driven by economic objectives and a long-term goal of controlling all of Yemen.
    Source evidence · PDF page 2
    The Houthis exploited a window of opportunity in July 2026 to resume their war with Saudi Arabia and secure concessions from Saudi Arabia that would alleviate the group·s dire economic situation.
  • Pakistan is attempting to pressure Iran to restrain Houthi attacks on Saudi Arabia, highlighting the complex relationship between Iran and the Houthis.
    Source evidence · PDF page 3
    Pakistan may seek to exert leverage over Iran to restrain Houthi offensive activity against Saudi Arabia. The Houthis are an independent partner of Iran and may resist potential Iranian pressure to halt their campaigns, however.
  • Iran continues to target regional shipping in the Strait of Hormuz to exert economic pressure on the US and its allies, despite facing operational constraints and limited success in significantly impacting oil prices.
    Source evidence · PDF page 4
    Iran has continued its efforts to disrupt regional shipping and pressure the global economy to impose costs on the United States and its allies even as transits through the strait have increased relatively and oil prices remain low relative to Iranian hopes.

Strategic Relevance

The report details the Houthis' strategic objectives in Yemen and against Saudi Arabia, Iran's efforts to disrupt global shipping, and the regional responses, all of which have significant implications for energy markets, international trade, and regional power dynamics.

Source Website View PDF

Key Entities

HouthisIranSaudi ArabiaPakistanUnited StatesYemenStrait of HormuzBab al Mandeb StraitMarib GovernorateBasijItalySouth Korea

Best For

Policy MakersIntelligence AnalystsGeopolitical StrategistsEnergy Sector Analysts

Related Themes

Regional SecurityProxy WarfareMaritime SecurityEnergy GeopoliticsEconomic WarfareState-Sponsored Terrorism

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