What Happened
- Since the US-Israel military campaign began on February 28, 2026, Iran and IRGC-linked forces have conducted systematic attacks on commercial shipping in and around the Strait of Hormuz, the Persian Gulf, and the Gulf of Oman.
- By mid-March 2026, ship-tracking data showed 279 ships had attempted to transit the strait; 22 of these were attacked — a strike rate of approximately 1-in-13 ships.
- Key incidents: The Safeen Prestige (Maltese-flagged container ship, owned by Abu Dhabi Ports Group) was the first container ship struck on March 4; a rescue tugboat sent to assist it was hit by two missiles on March 6 and sank, with three crew missing.
- The IRGC claimed hitting the oil tanker Prima and the US oil tanker Louis P with drones on March 7. On March 10, a bulk carrier reported an explosion 36 nautical miles off Abu Dhabi, and US military intelligence reported Iran had begun planting naval mines in the strait.
- A large wave of coordinated attacks on at least three vessels occurred on March 11, and by March 13, US Navy officials stated that missile attacks were the defining risk in the strait.
Static Topic Bridges
Freedom of Navigation and International Maritime Law
Freedom of navigation on the high seas and through international straits is a foundational principle of international maritime law, codified primarily in the United Nations Convention on the Law of the Sea (UNCLOS, 1982).
- UNCLOS Article 17-26: Establishes "innocent passage" rights for foreign ships through a coastal state's territorial sea (12 nautical mile zone).
- UNCLOS Articles 37-44: Establishes "transit passage" rights — a stronger right — for ships and aircraft through straits used for international navigation (like Hormuz). Coastal states cannot suspend this right.
- Iran has repeatedly threatened to close the Strait of Hormuz in past crises (2008, 2011-12, 2019) but had not executed closure at scale before 2026.
- Iran is a signatory to UNCLOS (ratified 1996); however, it claims a broader 12-nautical-mile territorial sea that overlaps the strait, raising jurisdictional disputes.
- "Freedom of Navigation Operations" (FONOPs) conducted by the US Navy in contested waters assert navigational rights against excessive maritime claims — a practice India has navigational interest in, given the South China Sea context.
Connection to this news: Iran's attacks on civilian shipping are a direct violation of UNCLOS transit passage rights and constitute illegal use of force against neutral vessels — topics directly examined in UPSC international law and maritime security questions.
The IRGC Navy — Asymmetric Maritime Warfare
The Islamic Revolutionary Guard Corps Navy (IRGCN) is a separate naval force from Iran's conventional Artesh Navy, operating in the Persian Gulf and Strait of Hormuz with a doctrine focused on asymmetric harassment, minelaying, fast-boat swarms, and drone/missile attacks.
- IRGCN assets: hundreds of fast attack craft, midget submarines, naval mines, shore-based anti-ship missiles (including the Noor/C-802 series), and armed UAVs (Shahed drones).
- Minelaying in narrow straits is particularly dangerous: the Hormuz shipping lane (3.2 km wide) is narrow enough that even modest mine deployment can deter commercial traffic.
- GPS jamming is another IRGCN tactic recorded in the 2026 campaign, disorienting commercial vessel navigation systems.
- Historical precedent: during the "Tanker War" of 1987-88 (Iran-Iraq War), Iran mined Gulf shipping lanes; the US then launched Operation Praying Mantis, destroying two Iranian oil platforms and multiple vessels.
- The 2026 attacks follow a pattern established during 2019-2021 when the IRGCN attacked multiple oil tankers in the Gulf of Oman.
Connection to this news: The IRGCN's attack tactics — missiles, drones, mines — directly explain the ship attack timeline, and are central to understanding why commercial shipping effectively halted despite Iran's incomplete physical control of the strait.
Impact on Global Shipping and India's Trade
India is the world's second-largest oil importer and a major trading nation; disruptions to Gulf shipping affect it through multiple channels: energy imports, Indian-owned/operated vessels, and seafarers.
- India has the world's 18th largest merchant fleet by tonnage; a significant number of Indian-managed and Indian-crewed vessels operate in the Gulf region.
- The International Maritime Organization (IMO), headquartered in London, is responsible for maritime safety; it issued emergency navigational warnings for the Strait of Hormuz region.
- War risk insurance premiums for Gulf voyages spiked several hundred percent following the attacks, raising shipping costs globally.
- The Directorate General of Shipping (India) advises Indian-flagged vessels and seafarers on high-risk maritime zones; the Ministry of External Affairs tracks Indian nationals aboard vessels in conflict zones.
- Rerouting around the Strait of Hormuz is largely impractical for Gulf oil exports given infrastructure limitations, unlike the Red Sea where Cape of Good Hope routing is a viable (costly) alternative.
Connection to this news: The attack timeline illustrates a sustained, systematic campaign to interdict Gulf shipping — with direct implications for India's seafarers, import costs, and trade security that UPSC tests under GS2 (diaspora, bilateral relations) and GS3 (infrastructure, trade).
Key Facts & Data
- Ships that transited Hormuz since conflict began (by March 2026): 279
- Ships attacked: 22 (attack rate ~1 in 13)
- First container ship struck: Safeen Prestige (Maltese-flagged, March 4, 2026)
- Safeen Prestige owner: Abu Dhabi Ports Group
- Rescue tugboat struck and sunk: March 6, 2026 (3 crew missing)
- Tankers hit by IRGC drones: Prima and Louis P (March 7, 2026)
- Mine planting in Hormuz: reported from March 10, 2026
- Hormuz shipping lane width: ~3.2 km in each direction
- US Operation Praying Mantis (historical precedent): 1988, Gulf tanker war
- UNCLOS ratified by Iran: 1996
- IMO headquarters: London, UK