Iranian min-subs and hi tech mines select which ships can pass and which cannot.
Thu 8:13 am +00:00, 26 Mar 2026Subs sit in silence at 30 metres depth waiting for targets to appear.
The subs lay mines that differentiate and identify the ships passing overhead.
The Iranian navy cannot fight in open ocean against the US flotillas
But in the shallow and narrow channels Iran can control which ships can pass and which ships cannot.
Allies of Iran can pass, but American and Israeli supporting ships cannot.
Sixteen vessels. Each twenty-nine meters long. Currently sitting motionless on the floor of the Strait of Hormuz with their engines off. The United States Navy — with its satellite networks, aerial patrol aircraft, P-8 Poseidon maritime patrol systems, and the most sophisticated sonar technology ever deployed — cannot find them. Not because Iranian technology is impressive. Because thirty meters of water and three kilometers of channel width make detection geometrically impossible regardless of what technology is looking. The Ghadir-class submarines were not built to compete with American nuclear submarines in open ocean. They were built for exactly this environment.
And the environment is doing everything that stealth technology cannot. At FRUM REPORT we go through the complete operational picture of what Iran’s submarine strategy in the Strait of Hormuz actually means — why the Pentagon’s announcement of eleven submarines destroyed left the most dangerous ones intact, why mine clearing is the prerequisite that no ally will commit to, why the geographic asymmetry of Hormuz inverts American naval advantage, and what the sanctions relief Trump quietly extended to Iranian oil exports reveals about the shared economic interest that is keeping this conflict at a level both sides can sustain.
FRUM REPORT examines the operational dimensions of this conflict that official briefings consistently understate — the geographic asymmetry that inverts technological advantage, the mine warfare prerequisite that no ally will fulfill, the acoustic environment that defeats the world’s most sophisticated sonar, and the economic constraint that is quietly shaping both sides’ operational limits. Evidence first. Analysis second. You decide what it means. Subscribe and turn on notifications — when the mine clearing question forces a definitive operational answer, when the Ghadir location picture changes, when the partial sanctions relief produces the diplomatic development neither side is currently describing publicly, the analysis will be here before anyone else connects the pieces.
