Iran deploys North Korean attack submarines to support its operations in the Strait of Hormuz
Arab Defense Website – May 12, 2026: The Iranian Navy deployed light attack submarines to support operations in the Strait of Hormuz. These submarines are distinguished by their ability to maneuver in relatively shallow waters and with a low level of noise, which makes them suitable for carrying out attacks against adversary ships. Since the 1980s, Iran has begun acquiring submarines from North Korea to enhance its capabilities to deprive adversaries of freedom of maritime action, as part of a series of highly influential weapon systems that Pyongyang supplied to Tehran. The Iranian Navy also modernized its fleet by acquiring North Korean “Yono” submarines during the 1990s and 2000s, while it is believed that the “Ghadir” submarines that were later manufactured inside Iran were largely based on the same Korean design.
Military estimates indicate that the nature of the waters in the Strait of Hormuz, with its limited depth, high sea noise, and heavy shipping traffic, may make sonar observations difficult and partially limit the effectiveness of anti-submarine missions. It is also believed that small submarines operating in congested littoral environments may pose additional operational challenges to larger navies, particularly in relation to continuous surveillance and protection of sea lanes.
