🇮🇷 Iran — Maritime Risk Profile
Iran represents the primary state-level maritime threat in the Gulf region. The Islamic Revolutionary Guard Corps Navy (IRGCN) operates an asymmetric naval force designed to harass, seize, and potentially close the Strait of Hormuz as leverage in geopolitical disputes.
Background
Iran's maritime threat posture is driven by several interconnected factors: the ongoing dispute over its nuclear programme and resulting US-led sanctions, longstanding territorial and resource disputes with Gulf Arab states, and the ideological commitment of the Islamic Revolutionary Guard Corps (IRGC) to confronting Western and Israeli interests. Iran controls the northern shore of the Strait of Hormuz and maintains the capacity to lay mines, deploy fast-attack craft, and conduct missile strikes across the Gulf.
Current Maritime Threats
IRGCN seizure and harassment of commercial vessels in the Strait of Hormuz and Gulf of Oman
Threat of strait closure or mining in response to military strike or maximum pressure sanctions
Ballistic missile and drone capability demonstrated in April 2024 attack on Israel
Proxy armed groups (Houthis, PMF) receiving Iranian weapons and training affecting regional shipping
Nuclear enrichment at 60% U-235 creating escalation risk if programme continues toward weapons capability
Key Actors
IRGCN (Islamic Revolutionary Guard Corps Navy) — primary maritime threat actor
IRIN (Islamic Republic of Iran Navy) — conventional naval force, secondary role
Quds Force — IRGC external operations division supplying weapons to proxies
Houthi forces in Yemen — Iranian proxy operating in Red Sea and Bab-el-Mandeb
Key Events Timeline
Nuclear enrichment at 60% U-235; US-Iran talks resume in Oman
Iran launches second ballistic missile salvo on Israel
Iran fires 300+ missiles and drones at Israel; IRGCN seizes MSC Aries
IRGCN seizes Marshall Islands-flagged St Nikolas
IRGCN seizes Niovi tanker in Strait of Hormuz
IRGCN seizes Advantage Sweet in Gulf of Oman
Iran-attributed drone attack on Mercer Street kills 2 crew
IRGCN seizes Stena Impero (UK-flagged) in retaliation
UK seizes Grace 1 (Iranian tanker) in Gibraltar
Limpet mine attacks on four tankers near Fujairah — attributed to Iran