On July 13, 2026, a Mahan Air flight from Tehran to Yemen carried Islamic Revolutionary Guard Corps (IRGC) commanders and military equipment to Houthi forces. The deployment, confirmed by multiple sources including Yemen’s information minister, precedes a Houthi naval blockade of Saudi Arabia and heightened threats to Red Sea maritime security.
The arrival of IRGC personnel and hardware in Yemen marks a significant escalation in the ongoing conflict, suggesting a direct effort by Tehran to bolster Houthi offensive capabilities. According to Reuters, the flight carried between 10 and 21 IRGC members, including senior commanders, alongside components for drones and short- to medium-range missiles. The aircraft, initially bound for the Houthi-controlled capital of Sanaa, was forced to divert to the port city of Hodeidah following a strike on the airport by the Saudi-backed Yemeni government.
Strategic Objectives and Military Cargo
Sources familiar with the operation indicate that the IRGC’s presence is intended to provide tactical training on new missile systems. News18 reported that the flight also transported gold to fund Houthi operations, further highlighting the extent of Iranian financial and material support. Mzahem Alsaloum, a security and intelligence analyst who has tracked these groups for years, confirmed that the shipment included drone and missile components similar to those previously deployed in attacks against Saudi Arabia and the United Arab Emirates.

“The IRGC commanders travelled there to support Houthi operations and provide training on new missile systems.”
Anonymous source, via Reuters
Yemen’s information minister, Moammar al-Iryani, confirmed the intelligence regarding the arrival of the IRGC experts in a telephone interview. He stated that the mission was clearly defined: Their mission is to strengthen the militias’ military capabilities and prepare them to threaten international maritime security in the Red Sea and the Bab al-Mandab Strait.
Escalation of Regional Maritime Tensions
The arrival of the military advisers occurred just days before a broader shift in Houthi posture. Gcaptain noted that Tehran reportedly asked the Houthi movement to prepare for a closure of the Red Sea oil route in the event of a U.S. strike on Iranian infrastructure. By early this week, the Houthis announced a formal naval blockade of Saudi Arabia, citing the July 13 bombing of Sanaa airport as the catalyst. This action signals the effective collapse of a four-year truce between Riyadh and the Houthi movement.

The situation has rippled through regional energy security, with the Houthis claiming attacks on two Saudi oil tankers as of Thursday.
Tehran’s Official Response
Iranian officials have categorically rejected the reports of military support. During a July 20 press conference in Tehran, Foreign Ministry spokesperson Esmaeil Baghaei maintained that the July 13 flight was a humanitarian and repatriation mission, intended to return a Houthi delegation that had traveled to Iran for the funeral of late Supreme Leader Ayatollah Ali Khamenei, as well as Yemeni citizens who had been receiving medical care in Iran.
The Houthi movement has similarly denied acting as an Iranian proxy, insisting that they possess the independent capability to develop their own weapons systems. Despite these denials, the proximity of the IRGC arrival to the declaration of the naval blockade remains a central point of concern for international security analysts monitoring the Bab al-Mandab Strait.
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