Iran vows to protect its nuclear capabilities, signals ‘new rules’ for Strait of Hormuz

Iran's supreme leader publicly declared that Iran will not surrender its nuclear and missile capabilities, characterising them as non-negotiable national ass...

What Happened

Iran's supreme leader publicly declared that Iran will not surrender its nuclear and missile capabilities, characterising them as non-negotiable national assets even as US-Iran ceasefire negotiations remain fragile.
New "legal rules and management" for the Strait of Hormuz were announced, with Iran asserting authority to govern passage through the waterway — a move that directly conflicts with the international legal framework under UNCLOS.
Iran's position frames the current US naval presence in the Persian Gulf as the primary source of regional insecurity, calling for an American withdrawal from the region.
The statements came on Persian Gulf Day, a state occasion in Iran, and were framed as a message to both domestic audiences and regional Gulf Arab states — some of whom have been impacted by the ongoing Iran-US-Israel conflict since February 2026.
Gulf Arab nations, including the UAE, have publicly opposed Iran's claim to govern Hormuz traffic, equating toll collection on international shipping to piracy; reports indicate some vessels were charged approximately $2 million to transit the strait.
Shipping through the Strait of Hormuz has been largely blocked since February 28, 2026, when an air war between the United States, Israel, and Iran began; the Iranian Revolutionary Guard Corps (IRGC) has boarded vessels and laid sea mines in the strait.
Iran simultaneously signalled openness to a "bright future" for the region if the US withdraws, suggesting the nuclear and missile demands are part of a broader position in ongoing negotiations.

Static Topic Bridges

The Strait of Hormuz: Geography, Traffic, and Strategic Significance

The Strait of Hormuz is a narrow maritime chokepoint connecting the Persian Gulf to the Gulf of Oman and the broader Indian Ocean. It is flanked by Iran to the north and Oman to the south, with the navigable channel as narrow as 3.2 km in parts. It is among the world's most critical energy arteries, historically carrying approximately 25% of global seaborne oil and 20% of global LNG.

Width at narrowest navigable point: approximately 3.2 km (2 miles)
Pre-conflict shipping: approximately 100–140 major vessels per day
Global seaborne oil passing through: ~25% (pre-conflict)
LNG passing through: ~20% (pre-conflict)
Countries most dependent on the strait: China, Japan, South Korea, India (major oil importers from the Gulf)
The strait is governed by an IMO Traffic Separation Scheme (TSS) dividing inbound and outbound shipping lanes

Connection to this news: Iran's claim to impose "new rules" on Hormuz passage is not merely a political statement — it directly threatens the energy supply chains of major Asian economies including India, raising the stakes of the US-Iran standoff for non-belligerent nations.

UNCLOS and the Right of Transit Passage

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and in force from 1994, governs maritime navigation including through international straits. Articles 37–44 of UNCLOS establish the right of "transit passage" through straits used for international navigation — a right that cannot be suspended or impeded by coastal states.

UNCLOS adopted: 1982 (Montego Bay); entered into force: November 1994
Articles 37–44: Govern transit passage through international straits
Transit passage right: All ships and aircraft — cannot be suspended, even in wartime
Iran's position: Iran entered a declaration upon signing UNCLOS limiting transit rights to UNCLOS parties; its 1993 domestic maritime law further conflicts with UNCLOS by requiring permission for warships and nuclear-powered vessels
Iran is a signatory to UNCLOS but has not ratified it
The US is not a party to UNCLOS but observes transit passage as customary international law

Connection to this news: Iran's "new rules" for Hormuz directly contradict the UNCLOS transit passage regime, putting Iran in legal conflict with virtually all major maritime nations. The legitimacy of toll collection or passage denial has no basis under international law, as confirmed by Chatham House legal analysis in April 2026.

Iran's Nuclear Programme: Key Milestones and Diplomatic Context

Iran's nuclear programme, begun in the 1950s under US assistance (Atoms for Peace), became a major proliferation concern after the 1979 Islamic Revolution. The 2015 Joint Comprehensive Plan of Action (JCPOA) between Iran, the P5+1, and the EU temporarily capped enrichment levels in exchange for sanctions relief. The US unilaterally withdrew from the JCPOA in 2018. Since then, Iran has progressively expanded enrichment, reaching levels close to weapons-grade.

JCPOA signed: July 14, 2015; US withdrawal: May 8, 2018
Iran's enrichment under JCPOA: capped at 3.67% U-235
Enrichment level by 2025: reported at up to 60% (near weapons-grade threshold of ~90%)
International Atomic Energy Agency (IAEA): Monitors compliance; Iran has restricted inspector access since 2021
Iran's declared position: Nuclear programme is for civilian energy; no weapons intent
Nuclear Non-Proliferation Treaty (NPT): Iran is a signatory; weapons acquisition would violate Article II

Connection to this news: Iran's refusal to trade away nuclear capabilities even for a ceasefire deal signals that the programme is now treated as a strategic deterrent asset. For UPSC, this illustrates the tension between NPT obligations, the right to peaceful nuclear use (Article IV), and great-power non-proliferation enforcement.

Key Facts & Data

Strait of Hormuz width at narrowest navigable point: ~3.2 km
Pre-conflict daily vessel traffic through Hormuz: 100–140 major ships
Global seaborne oil via Hormuz: ~25%
LNG via Hormuz: ~20%
Hormuz blocked since: February 28, 2026 (start of US-Israel-Iran air war)
Reported toll charged to some ships for passage: ~$2 million per vessel
UNCLOS transit passage Articles: 37–44 (right cannot be suspended)
JCPOA signed: July 2015; US withdrawal: May 2018
Iran's uranium enrichment (2025 estimate): up to 60% U-235
Persian Gulf Day (Iran): April 30 (occasion for the supreme leader's statement)