Two Iranian Navies, One Coastline
Iran is the only major power with two formally separate navies operating in the same waters under conflicting doctrines. The Artesh Navy, the regular force inherited from the imperial period, conducts conventional operations. The IRGC Navy, the revolutionary parallel structure, conducts asymmetric ones. The arrangement was politically expedient at its creation. Forty years on, it produces a force that is internally incoherent and externally legible.
The Artesh Navy fields frigates, submarines, and a thin blue-water capability. It deploys to the Indian Ocean, calls at port in Oman and India, and stages occasional joint exercises with Russia and China. Its officer corps is professionally trained and its institutional memory predates the revolution. Its doctrine is recognizably that of a small conventional navy: presence, deterrence, force protection. It is the Iran that wants to be treated as a normal regional power with normal naval interests.
The IRGC Navy is the other Iran. Its inventory leans toward speedboats, midget submarines, anti-ship missiles, and sea mines. Its doctrine is Mahanian inversion: deny the sea rather than command it. Its officers are politically reliable and operationally aggressive. The harassment incidents in the Gulf, the seizures, the limpet mine attacks, the drone strikes on shipping all originate from this organization. Where the Artesh wants to sail with the world’s navies, the IRGC wants to expel them from the Gulf.
The split is more than organizational. The two services use different equipment, different communications systems, and different rules of engagement. They do not effectively coordinate during contingency operations. In a real shooting war, an Artesh frigate and an IRGC fast attack squadron operating in the same waters produce friction rather than synergy. American planners have noted for years that the IRGC’s freelancing makes the Artesh’s professionalism harder to operationalize, and vice versa.
The dual structure persists because dismantling it is politically impossible. Folding the IRGC Navy into the Artesh would dilute the IRGC’s revolutionary identity and threaten its budget. Folding the Artesh into the IRGC would alienate the professional officer corps and complicate Iran’s diplomatic posture. The Supreme Leader’s office prefers parallel structures because parallel structures cannot coup the regime. Operational efficiency was never the goal.
For Western planners, the split is a gift. It means there is no single Iranian naval voice to be deterred or negotiated with. It means escalation can come from one branch while the other denies authorization. It means Iranian maritime strategy is, by design, schizophrenic. The dual navy is not a hidden strength. It is a deliberate weakness, preserved because the alternative is more dangerous to the regime than to its enemies.