Iran’s Underground Mountain Bases and Low-Altitude Air Operations Raise Strategic Concerns.

Recent developments in March 2026 have drawn global attention to Iran’s extensive network of underground military facilities built beneath mountainous terrain. These fortified bases are believed to play a crucial role in protecting and deploying aircraft, missiles, and unmanned aerial vehicles (UAVs), strengthening Iran’s defensive and retaliatory capabilities amid rising regional tensions.

Underground “Mountain” Military Bases

Iran has reportedly developed large underground complexes often referred to as “missile and UAV cities.” Built deep within mountains, these facilities are designed to shield strategic military assets from satellite surveillance, aerial reconnaissance, and potential airstrikes. Military analysts believe such mountain fortresses allow Iran to maintain operational readiness even during large-scale conflicts.

One of the facilities drawing international attention is the Mount Pickaxe (Taleghan-2) site. Recent satellite imagery has indicated heightened military activity in the area. Experts suggest the location may be used to protect nuclear-related infrastructure and could potentially host missile launch systems or drone deployment facilities.

Another major installation is the Oghab 44 (Eagle 44) underground airbase, which was publicly unveiled in 2023. Built beneath mountainous terrain, the base is designed to house fighter jets, bombers, and unmanned aerial vehicles. Such facilities allow aircraft to remain concealed while being capable of rapid deployment during military operations.

Iran’s military has also showcased advanced stealth drones, including the Shahed-161, which are believed to be capable of launching from hidden facilities within these mountain bases. These drones are designed for reconnaissance and potential strike missions, increasing Iran’s strategic reach in the region.

Operational Developments in March 2026

Recent operational reports suggest Iranian aircraft have been conducting extremely low-altitude flights—sometimes as low as 80 feet above ground level—while navigating mountainous terrain. Such tactics are intended to evade radar detection, especially when approaching sensitive areas in the Gulf region.

At the same time, regional tensions have escalated significantly. As of March 12, 2026, the United States Central Command launched Operation Epic Fury, targeting Iranian military infrastructure, including airfields, command centers, and missile or drone launch facilities.

In parallel developments, the Israel Air Force reported intercepting a large swarm of 119 Iranian UAVs in recent attacks. These interceptions highlight the growing role of drone warfare in the evolving security dynamics of the Middle East.

Iranian Air Power and Modernization

Despite decades of sanctions and technological restrictions, Iran continues to maintain a unique air fleet. Notably, it remains the only country still operating the F-14 Tomcat fighter aircraft, originally acquired before the 1979 revolution. Reports suggest around 40 of these aircraft were still airworthy as of early 2026, although their operational readiness may have been affected by recent strikes.

Iran is also reportedly working to modernize its air force. Intelligence assessments indicate plans to integrate Russian Su-35 fighter jets into its fleet. These advanced aircraft could significantly enhance Iran’s air combat capabilities and bridge the gap between its aging aircraft and newer stealth technologies.

Strategic Implications Iran’s underground military infrastructure, combined with advanced drone capabilities and evolving air strategies, reflects a defense doctrine focused on survivability and rapid retaliation. By placing critical assets inside mountains and using low-altitude flight tactics, Iran aims to reduce vulnerability to pre-emptive strikes while maintaining the ability to respond quickly during conflict.

As regional tensions continue to escalate, these developments underscore the increasing militarization of the Middle East and the strategic importance of underground military infrastructure in modern warfare. Observers say the coming months will be critical in determining how these capabilities influence the broader balance of power in the region.

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