# US-Iran conflict: Sovereignty disputes over Strait of Hormuz

> Live situation record from CLSTR: https://clstr.news/situations/us-iran-military-and-geopolitical-conflict
> Updated: 2026-08-21T03:00:34.000Z. Sources: 6. Developments: 2.

The military and geopolitical conflict between the United States and Iran has entered a new phase of escalation following the expiration of a Memorandum of Understanding on August 17, 2026. While the strategic stalemate established after the February 2026 precision strikes remains, tensions regarding maritime sovereignty have intensified.

U.S. President Donald Trump has asserted intentions to declare the Strait of Hormuz as U.S. territory following a defeat of Iran, a claim Iranian officials have categorically rejected. Iran’s deputy foreign minister, Kazem Gharibabadi, stated that the vital oil-shipping route will remain under Iranian command and that the country will continue to enforce blockades. Additionally, Iran’s judiciary chief, Gholam-Hossein Mohseni-Eje’i, maintained that the strait is an “inseparable part of Iran.”

The economic consequences of the standoff have deepened. Abdul Nasser Hemmati, President of Iran’s Central Bank, confirmed that Iranian oil exports have ceased. This follows the earlier volatility in crude oil prices and rising commercial tanker insurance premiums triggered by the February strikes. Despite U.S. and Israeli efforts to degrade Iran’s command-and-control infrastructure, the strategic outcome remains undecided as both nations maintain hardline positions.

## Claims

- Iran will maintain control over the Strait of Hormuz and will enforce a blockade if necessary. (single source)
- The United States intends to declare the Strait of Hormuz as U.S. territory following the defeat of Iran. (single source)
- Iran's oil exports have currently ceased. (single source)
- A Memorandum of Understanding between the U.S. and Iran expired on August 17, 2026. (single source)
- Insurance premiums for commercial tankers in the Strait of Hormuz surged following U.S. and Israeli strikes on Iran in February 2026. (single source)

## Timeline

### 2026-08-21: US-Iran relations: A history of intervention and regional conflict

The long-standing conflict between the US and Iran, rooted in historical interventions like the 1953 coup, continues to impact regional security and global energy markets.

2 sources. https://clstr.news/cluster/us-iran-relations-a-history-of-intervention-and-regional-conflict

### 2026-08-20: Strait of Hormuz control tensions rise amid US-Iran stalemate

The U.S. and Iran face a geopolitical stalemate as a key memorandum expires, with tensions rising over control of the Strait of Hormuz and the cessation of Iranian oil exports.

4 sources. https://clstr.news/cluster/us-iran-conflict-reaches-strategic-stalemate-amid-economic-instability

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Cite as: US-Iran conflict: Sovereignty disputes over Strait of Hormuz. CLSTR, https://clstr.news/situations/us-iran-military-and-geopolitical-conflict