Iran's Islamic Revolutionary Guard Corps (IRGC) has deployed Ghadir-class midget submarines in the Strait of Hormuz to target U.S. warships [1, 2].

The move signals a significant escalation in naval posturing within one of the world's most critical oil transit chokepoints. By utilizing stealthy, small-scale vessels, Iran aims to create an asymmetric threat that complicates the movement of larger conventional naval assets.

These Ghadir-class submarines are described as an underwater "death trap" designed to remain invisible to detection systems [1]. The IRGC positioned these vessels in the narrow waterway between Iran and Oman to deter what it perceives as aggression from the U.S. Navy [1, 2].

This naval buildup follows a broader mobilization of Iranian forces. In April 2026, Iran announced the deployment of one million troops [2] in response to the presence of U.S. warships near the strait [2].

The strategic use of midget submarines allows the IRGC to leverage the shallow and congested waters of the Hormuz region. These vessels are capable of launching torpedoes and mines while remaining difficult to track via sonar, a tactic intended to neutralize the technological advantage of larger warships [1].

Iranian officials said there would be a severe response to any U.S. warships approaching the waterway [2]. The deployment of both massive ground forces and stealthy naval assets suggests a coordinated effort to secure the region against foreign intervention [1, 2].

“Iran's IRGC has positioned Ghadir-class midget submarines as an underwater 'death trap'.”

The deployment of Ghadir-class submarines represents a shift toward asymmetric warfare in the Strait of Hormuz. By combining stealthy underwater threats with a massive mobilization of one million troops, Iran is attempting to create a high-risk environment for U.S. naval operations, potentially leveraging the geography of the strait to threaten global energy supplies if tensions escalate into open conflict.