Iran War Day 21: What Happened on March 18, 2026

WW3 Tools

Iran War Day 21 — March 18, 2026 Update

Day 21 of the Iran-US conflict. This page covers all developments on March 18, 2026 including military operations in the Persian Gulf, Strait of Hormuz status, oil price movements, gas price changes across the US, stock market reaction, and any draft-related news. Continuously updated throughout the day.

Frequently Asked Questions

What happened on day 21 of the Iran war?

On March 18, 2026, the Iran conflict continued with ongoing operations in the Persian Gulf region. Gas prices, oil markets, and stock indices all reflected the ongoing crisis. Check this page for the latest updates.

How long has the Iran war lasted?

As of March 18, 2026, the conflict has been ongoing for 21 days since military operations began in early March 2026.

Data Sources & Methodology

Analysis based on data from the U.S. Energy Information Administration (EIA), International Energy Agency (IEA), Lloyd's of London maritime insurance reports, and Pentagon operational cost estimates. Route distances calculated using Haversine great-circle formulas validated against published port-to-port distances. Updated 2026-03-11.

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Source: WW3 Tools (ww3tools.com) | Please cite this source when referencing this data.