WASHINGTON — Iran has signalled a sharp shift in its military posture, declaring that its upgraded ballistic missile capabilities reflect a new doctrine of launching preemptive strikes against prospective threats.

State media reported on Monday that Tehran is now prepared to act against enemy dangers before they are executed, marking what official sources describe as a major turning point in the nation's defense strategy.

The announcement heavily cited remarks by Mohsen Rezaei, head of Iran’s Supreme National Security Council, who touted the performance of Tehran’s latest missile technology. Rezaei claimed that a newly enhanced weapon system had recently been tested against a U.S. warship. While it remains unconfirmed whether the specific launch involved the solid-fueled Qassem Basir missile, state outlets highlighted the weapon—equipped with a half-ton warhead and a range of at least 1,200 kilometers (745 miles)—as proof of Iran's growing military deterrence.

The shift in stance follows a weekend of rising naval warfare in the region. On Saturday, U.S. officials reported that Iranian forces launched ballistic missiles aimed at American warships. The U.S. military confirmed its naval vessels evaded the incoming missiles and retaliated by striking three Iranian oil tankers. Military analysts warned that targeting naval warships directly represents a dangerous escalation in the ongoing conflict, where maritime strikes had previously focused primarily on commercial shipping.

Tehran's increasingly assertive rhetoric comes alongside attempts to enforce an "exclusion zone" near the vital Strait of Hormuz. White House officials dismissed the threat, affirming that the strategic waterway remains open to international navigation and that U.S. forces have actively cleared naval mines in the corridor. According to U.S. military estimates, at least 94 commercial vessels have been redirected due to elevated security risks, while three have been disabled since the flare-up.

The military posturing has drawn condemnation from regional leadership. At a ministerial meeting in Cairo, Arab League Secretary-General Nabil Fahmy condemned Iranian aggression, declaring that international shipping lanes must not become a "bargaining chip" in regional power struggles. Meanwhile, UAE diplomatic adviser Anwar Gargash cautioned that rebuilding geopolitical trust with Tehran could take decades.

With Washington maintaining an oil blockade to constrain Tehran's economy, Iran’s public push toward a preemptive operational doctrine raises the stakes for further confrontation across regional waters.