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US diverts 100 ships amid escalating Iran maritime tensions

The United States military has redirected approximately 100 vessels over the past two months as tensions in Middle Eastern waters intensify. The diversions follow Iran's blockade of key shipping routes in response to military strikes.

LSN Malaysia · 12 September 2026

US diverts 100 ships amid escalating Iran maritime tensions

The US Department of Defense confirmed that around 100 commercial and military vessels have been rerouted away from their intended passages over the past eight weeks, underscoring the severity of disruptions to global maritime trade. The diversions stem from Iran's decision to restrict access through the Strait of Hormuz, a critical chokepoint through which roughly one-third of the world's seaborne traded oil passes.

Iran implemented the blockade following military operations conducted by the United States and Israel targeting Iranian positions and infrastructure. The action represents Tehran's strategy to counter what it views as aggressive external interference and to maintain leverage in regional geopolitical tensions.

The US has responded by attempting to restrict Iran's maritime commerce and revenue sources through the redirection of shipping traffic. Officials have characterised the effort as necessary to maintain freedom of navigation and protect international commerce in one of the world's most strategically important waterways.

The escalating situation has raised concerns among regional governments and international shipping authorities about the security of vital trade corridors. Malaysia, as a major trading nation heavily dependent on regional maritime routes, has expressed interest in seeing de-escalation efforts by all parties involved.

Both Washington and Tehran have indicated their willingness to defend their respective positions in the disputed waters, suggesting the standoff may continue in the coming weeks.