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Iran says retaliatory attacks “legitimate and definite” if U.S. violates ceasefire

26 May 2026

Iran’s Islamic Revoluationary Guard Corps has reportedly warned the U.S. that it considers retaliatory strikes “legitimate and definite” should the U.S. violate an ongoing ceasefire agreement, as tensions once again intensify in the Middle East, denting hopes for an imminent peace deal. Media report

The Islamic Revolutionary Guard Corps has issued a stern warning to the United States, declaring that any violation of the ongoing ceasefire agreement will trigger legitimate and definite retaliatory strikes. This geopolitical instability in the Middle East significantly impacts merchant shipping routes near the Strait of Hormuz and the Gulf of Oman. With regional tensions escalating, commercial vessels, including tankers and bulk carriers, face heightened risks of detention or interference, potentially disrupting critical supply chains and maritime logistics operations globally.

These security threats necessitate strict adherence to the ISPS Code, specifically Part A, Section 4, regarding maritime security levels and ship-to-shore interface protocols. Compliance departments must ensure that the Ship Security Plan (SSP) is updated to reflect current risk assessments in high-risk areas. Furthermore, under SOLAS Chapter XI-2, masters must maintain continuous communication with regional maritime security centers. Failure to comply with these international maritime regulations can lead to severe insurance implications, vessel detentions, and compromised safety standards for crews operating in volatile zones.

Masters and navigating officers must remain hyper-vigilant when transiting these high-risk zones. It is essential to conduct thorough pre-voyage risk assessments and maintain a constant lookout for suspicious activity near port approaches. Navigating officers should ensure that Automatic Identification Systems (AIS) are monitored closely and that emergency response drills are frequently practiced. Staying informed on the latest maritime security bulletins is critical for maintaining vessel safety and protecting the crew during these periods of heightened regional instability.

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