The Islamic Revolutionary Guard Corps (IRGC) today, 15/3, announced its 54th strike in the "True Promise 4" retaliation campaign against the US and Israel. The attack involved various ballistic missiles, including the Khorramshahr class, which carries a two-ton warhead, along with Kheibar Shekan, Qadr, and Emad missiles.

This strike also marked the first deployment of Iran's "sejjil solid-propellant strategic missile" since the conflict began. The IRGC stated that the Sejjil missile targeted "a command center linked to Israeli air force operations."

Missiles launched by Iran during the 54th retaliatory strike on 15/3. Video: *Tasnim*.

The force confirmed that critical infrastructure related to Israel's defense industry and military, as well as enemy troop assembly points, were hit.

The Iranian military also stated it launched unmanned aerial vehicles (UAVs) at Israel's "Lahav 433" police unit and the "Gilat Defence" satellite communication center. Hezbollah, an Iranian ally in Lebanon, reported targeting the Palmachim airbase, south of Tel Aviv in central Israel, with an "advanced missile."

The Times of Israel reported that Iran carried out seven missile launches today, with the latest attack injuring two people in central Israel. According to Reuters, debris from an Iranian missile struck a civilian building used by the US consulate in Israel, likely housing diplomatic staff.

The Israel Defense Forces (IDF) announced new large-scale airstrikes on western Iran today. Lebanese state media and government sources reported that Israeli overnight airstrikes killed at least 4 people.

The Center for Strategic and International Studies (CSIS), based in the US, believes the Sejjil series was developed by Iran in the 1990s, building on earlier projects, specifically the zelzal short-range ballistic missile.

Western experts estimate the Sejjil to be 18 m long, 1,25 m in diameter, and have a launch mass of 22,5-23 tons, earning it the designation "super-heavy missile." Each Sejjil can carry a high-explosive warhead weighing 500-1,500 kg, achieving a range of 2,000-2,500 km.

"Sejjil is Iran's longest-range solid-propellant missile," stated Fabian Hinz, a CSIS expert.

A Sejjil missile launch in an image published in 6/2025. Photo: *Tasnim*.

The Middle East has been engulfed in conflict since the US and Israel launched airstrikes on Iran on 28/2. Iran retaliated by firing missiles and UAVs into Israeli territory, US bases in the Middle East, and critical energy infrastructure in several Gulf countries.

US President Donald Trump affirmed last week that 80% of Iran's missile launch capability had been eliminated, while the IDF also declared it had destroyed over 300 enemy missile launchers since the conflict began.

However, experts warn that Iran's initial attacks might only use older-generation ballistic missiles to stretch enemy air defenses, forcing the US, Israel, and their allies to expend large quantities of expensive interceptors. More modern weapons could be deployed once gaps appear in US and allied defense networks.

According to closed-door meetings between defense officials and the US Congress last week, Iran may still possess up to 50% of its missile and launcher arsenal, hidden in underground bunkers.

Two senior US officials told the New York Times that Iran "is storing many missiles to attack important targets like US radar," while acknowledging that the Pentagon "does not fully understand" the locations of enemy missile launch sites.

Pham Giang (According to AFP, Tasnim, Times of Israel)