Iran’s Midget Submarines Form Quiet Backbone of Coastal Defence
Small but numerous Ghadir-class submarine fleet highlights Tehran’s focus on asymmetric warfare in the Persian Gulf
Iran’s navy has developed a range of unconventional tools over the years, but one of the least noticed is its fleet of small submarines known as the Ghadir-class submarine. These compact boats are designed specifically for operations in the shallow waters of the Persian Gulf, where larger submarines would face serious limitations.

Each Ghadir-class submarine displaces about 125 tons when submerged. Because of their small size, they are suited for coastal defence and operations close to shore. Estimates suggest that Iran operates between 15 and 20 of these vessels, though exact numbers vary depending on the source.
The submarines are equipped with two torpedo tubes and are not believed to carry additional reloads. Despite their limited armament, they are capable of firing torpedoes and possibly cruise missiles. They can also lay naval mines and deploy or retrieve special forces units, including combat divers. Some reports say the submarines are able to rest quietly on the seabed to avoid detection, a tactic that could make them difficult to track during a conflict.
Military analysts note that the Ghadir-class reflects Iran’s focus on asymmetric naval warfare. Instead of matching larger and more advanced navies ship for ship, Iran has invested in smaller, harder-to-detect platforms that can operate in confined waters. In a potential confrontation with forces such as the United States Navy, these submarines could be used in coordinated numbers to challenge technologically superior opponents.
While they are less capable than larger submarines, their relatively low cost and small size make them more expendable. By relying on speed, surprise, and local geographic knowledge, Iran’s midget submarines represent a strategy aimed at offsetting conventional disadvantages through unconventional means.
Authored By: Global GeoPolitics
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