Iran says ‘will target’ any vessel traffic in Strait of Hormuz after U.S. strikes in latest escalation

The U.S. military launched strikes on multiple targets inside Iran, describing the action as a response to continued Iranian aggression in the region. Iran's...

What Happened

The U.S. military launched strikes on multiple targets inside Iran, describing the action as a response to continued Iranian aggression in the region.
Iran's Islamic Revolutionary Guard Corps (IRGC) declared the Strait of Hormuz closed to all vessels, including oil tankers and commercial ships, effective immediately.
Iranian state media reported explosions on Qeshm Island and in the port cities of Bandar Abbas and Sirik — both located along the Strait of Hormuz coastline.
The IRGC accused the U.S. of violating a prior ceasefire arrangement reached in April 2026 and said the closure would remain in effect "until further notice."
The action raised immediate alarm among global energy markets given the strait's role as the world's most critical oil transit chokepoint.

Static Topic Bridges

The Strait of Hormuz: Strategic and Economic Significance

The Strait of Hormuz is the narrow waterway connecting the Persian Gulf to the Gulf of Oman and the wider Arabian Sea. At its narrowest point, it is approximately 34 kilometres wide. It is bounded by Iran to the north and Oman (and the UAE enclave of Musandam) to the south.

In the first half of 2025, approximately 20.9 million barrels per day of petroleum liquids transited the strait — roughly 20% of global petroleum liquids consumption.
The strait accounts for approximately 25–27% of all seaborne oil trade worldwide, making it the single highest-volume oil chokepoint on earth.
Major oil exporters relying on the strait include Saudi Arabia, Iraq, the UAE, Kuwait, Qatar, Bahrain, and Iran itself.
Around one-fifth of global liquefied natural gas (LNG) trade also passes through Hormuz, primarily from Qatar.
There is no viable large-scale alternative seaborne route; limited overland bypass pipelines (such as the Abqaiq–Yanbu pipeline in Saudi Arabia) cannot substitute full strait volumes.

Connection to this news: Iran's threat to block vessel traffic directly weaponises one of the world's most critical energy arteries, making this a live test of international maritime security frameworks.

UNCLOS and the Right of Transit Passage

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and in force since 1994, governs navigational rights through international straits under Part III (Articles 34–45).

Article 37 defines an international strait as one routinely used for international navigation that connects one area of the high seas or Exclusive Economic Zone (EEZ) to another.
Article 38 enshrines the right of "transit passage" for all ships and aircraft through such straits — this right "shall not be impeded."
Article 44 explicitly prohibits coastal states from suspending transit passage, even temporarily and even on security grounds — this is stricter than the "innocent passage" regime that applies in ordinary territorial waters.
The key distinction from "innocent passage": transit passage cannot be suspended under any circumstances; innocent passage can be temporarily suspended for security reasons.
Iran signed UNCLOS conditionally but has not ratified it. Iran's domestic maritime law (1993) recognises only "innocent passage" through Hormuz and does not acknowledge it as an international strait subject to transit passage rights — a position rejected by the international community and the United States.

Connection to this news: Any Iranian closure of the Strait of Hormuz directly violates the transit passage regime under UNCLOS Article 38 and 44, as the strait is unambiguously an international navigation waterway. This creates a flashpoint between Iran's national legal position and established international maritime law.

The IRGC: Structure and Maritime Role

The Islamic Revolutionary Guard Corps (IRGC) was established on May 5, 1979, by order of Ayatollah Ruhollah Khomeini following the Islamic Revolution, as a parallel military force loyal to the revolutionary government rather than to the traditional armed forces.

The IRGC comprises five branches: Ground Forces, Aerospace Force, Navy, Quds Force (expeditionary), and the Basij (paramilitary militia).
The IRGC Navy specifically controls operations in the Persian Gulf and the Strait of Hormuz, operating fast patrol boats, submarines, and anti-ship missile batteries.
The IRGC is constitutionally accountable only to the Office of the Supreme Leader, not to the elected government, giving it an independent command authority in decisions like closure declarations.
The Quds Force is the IRGC's overseas operations arm, responsible for support to regional allied groups.
The United States designated the IRGC as a Foreign Terrorist Organisation in 2019.

Connection to this news: The IRGC — not Iran's regular army — issued the Hormuz closure declaration, underscoring that these decisions flow from the Supreme Leader's office and sit outside normal diplomatic channels.

Key Facts & Data

The Strait of Hormuz is approximately 34 km wide at its narrowest point, located between Iran (north) and Oman/UAE (south).
Approximately 20.9 million barrels per day of petroleum transited the strait in H1 2025 — about 20% of global consumption.
~25–27% of all seaborne oil trade and ~20% of global LNG trade passes through the strait.
UNCLOS Part III, Article 38 guarantees transit passage; Article 44 prohibits its suspension.
The IRGC was founded on May 5, 1979, and answers to Iran's Supreme Leader.
India imports approximately 87–88% of its crude oil needs; over 60% of Indian crude imports originate in the Persian Gulf, giving Hormuz disruptions direct energy security implications for India.