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International Relations May 18, 2026 4 min read Daily brief · #16 of 34

Iran-Israel war LIVE: Iran officially announces new body to manage Strait of Hormuz

Iran's Supreme National Security Council announced the establishment of the Persian Gulf Strait Authority (PGSA), a formal regulatory body to manage transit ...


What Happened

  • Iran's Supreme National Security Council announced the establishment of the Persian Gulf Strait Authority (PGSA), a formal regulatory body to manage transit through the Strait of Hormuz.
  • The PGSA began communicating with shipping operators, issuing regulations and directives from official channels to vessels seeking to transit the strait.
  • Reports indicate Iran introduced a de facto toll system framed as a compulsory maritime insurance policy — a financial mechanism to monetize the strait's chokepoint status.
  • A drone strike was reported on the perimeter of the UAE's Barakah Nuclear Energy Plant in Abu Dhabi's Al Dhafra region on May 17, sparking a fire at an external electrical generator; two drones were intercepted by air defences and one hit the generator with no casualties and normal radiation levels confirmed.
  • Saudi Arabia intercepted three drones launched from Iraqi airspace over the kingdom's territory the same week, illustrating the regional spread of aerial threats.
  • The PGSA's official X account was activated announcing oversight of "Hormuz Strait operations and latest developments," signalling Iran's intent to institutionalise its chokepoint leverage.

Static Topic Bridges

Strait of Hormuz — The World's Most Critical Oil Chokepoint

The Strait of Hormuz is a narrow waterway between Iran and Oman connecting the Persian Gulf with the Gulf of Oman and the Arabian Sea. At its narrowest point the strait is approximately 34 kilometres (21 miles) wide, with two shipping lanes (inbound and outbound) each roughly three miles wide separated by a buffer zone.

  • Approximately 20–21 million barrels of oil per day (about 20% of global petroleum liquids consumption) transited the strait in 2025 — the highest volume of any chokepoint in the world.
  • Roughly one-fifth of global liquefied natural gas (LNG) trade passes through the strait, as Qatar and Iran are major LNG exporters.
  • Only Saudi Arabia (East-West pipeline, up to 7 million b/d capacity) and the UAE (Habshan-Fujairah pipeline, 1.5 million b/d capacity) have partial bypass infrastructure; no substitute for full diversion exists.
  • Iran has, under international law, sovereign rights over one side of the navigable channel; Oman borders the other.

Connection to this news: The establishment of the PGSA represents Iran's attempt to convert its geographic position into a formal administrative and financial mechanism, bypassing existing international maritime law frameworks such as UNCLOS transit passage rights.

Barakah Nuclear Energy Plant

The Barakah Nuclear Energy Plant is the UAE's first and the Arab world's first commercial nuclear power station, located in the Al Dhafra region of Abu Dhabi. It is operated by ENEC (Emirates Nuclear Energy Corporation) and uses South Korean APR-1400 pressurised water reactor technology. Four units are either operational or under commissioning, giving Barakah a total planned capacity of approximately 5,600 MW.

  • Construction began in 2012; Unit 1 achieved commercial operation in 2021.
  • The plant is overseen by the IAEA, which expressed concern following the May 17 drone strike perimeter incident.
  • The UAE has signed a 123 Agreement (Civil Nuclear Cooperation Agreement) with the United States, renouncing uranium enrichment and reprocessing domestically.
  • A strike on a nuclear plant perimeter raises issues under international humanitarian law and IAEA safeguards norms.

Connection to this news: The drone strike on the Barakah plant perimeter on May 17, 2026 — a day before Iran's formal PGSA announcement — underscores the escalation dynamic linking Hormuz shipping leverage with broader regional conflict pressures.

UNCLOS and Transit Passage Rights

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and in force since 1994, is the principal international legal framework governing maritime navigation. Article 37 and Part III of UNCLOS recognise "transit passage" rights — the right of all ships and aircraft to navigate continuously and expeditiously through international straits used for international navigation, without prior authorisation from the coastal state.

  • Transit passage rights cannot be suspended by the coastal state (unlike "innocent passage" in territorial waters, which can be temporarily suspended).
  • The Strait of Hormuz qualifies as an international strait under UNCLOS.
  • Iran (a UNCLOS signatory) has historically contested the breadth of transit passage rights in the strait.
  • Introduction of mandatory tolls or insurance requirements by Iran would be inconsistent with UNCLOS Article 44, which prohibits hampering or suspending transit passage.

Connection to this news: Iran's PGSA toll/insurance framework operates in direct legal tension with UNCLOS transit passage provisions, setting up a potential dispute between Iran and maritime nations over freedom of navigation.

Key Facts & Data

  • The Strait of Hormuz is 34 km wide at its narrowest point; the navigable channel is approximately 6 km (two 3-mile lanes with buffer).
  • About 20% of global petroleum liquids and approximately 20% of global LNG trade transits Hormuz annually.
  • The Persian Gulf Strait Authority (PGSA) was announced by Iran's Supreme National Security Council in May 2026.
  • The Barakah Nuclear Energy Plant has a planned capacity of approximately 5,600 MW across four APR-1400 units.
  • Saudi Arabia and the UAE are the only two countries with pipeline bypasses to the Strait of Hormuz, with combined bypass capacity under 9 million b/d — less than half of normal strait throughput.
  • Iran became a BRICS member in January 2024 as part of BRICS expansion, giving the Iran-shipping crisis multilateral diplomatic dimensions.
  • Traffic through the Strait of Hormuz since the February 2026 conflict outbreak dropped to approximately 5% of pre-war averages.
On this page
  1. What Happened
  2. Static Topic Bridges
  3. Strait of Hormuz — The World's Most Critical Oil Chokepoint
  4. Barakah Nuclear Energy Plant
  5. UNCLOS and Transit Passage Rights
  6. Key Facts & Data
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