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Iran leveraging the Strait of Hormuz has roots in history. Here’s what its planning for the future


What Happened

  • The ongoing 2026 West Asia conflict — triggered by US-Israel military strikes on Iran — has resulted in Iran effectively closing the Strait of Hormuz to international shipping, marking the first time in history that Iran has executed rather than merely threatened a closure.
  • Iran is deploying a strategy of selective drone strikes near the Strait, making insurance and shipping companies unwilling to transit the narrow waterway.
  • Iran controls several strategic islands — Greater Tunb, Lesser Tunb, Abu Musa, Lark, Qeshm, and Hormuz — from which it can deploy anti-ship cruise missiles and suicide drones.
  • The resulting disruption is described as the largest global oil supply shock in history — three times the scale of the 1973 Arab oil embargo.
  • 84% of crude oil and condensate and 83% of LNG moving through the Strait in 2024 went to Asian markets, with India, China, Japan, and South Korea as the top destinations.

Static Topic Bridges

The Strait of Hormuz: Geography and Strategic Importance

The Strait of Hormuz is a narrow waterway between Iran to the north and Oman and the UAE to the south, connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. It is the world's most critical maritime chokepoint for oil and gas trade.

  • At its narrowest point, the Strait is only about 33 km wide, with navigable shipping lanes of just 3 km in each direction.
  • Approximately 20-21 million barrels of crude oil per day transit the Strait — roughly 20% of global petroleum liquids and 25% of seaborne oil trade.
  • About 20% of the world's liquefied natural gas (LNG) also passes through this route.
  • Countries entirely dependent on the Strait for oil exports include Saudi Arabia, Iraq, Iran, Kuwait, the UAE, Bahrain, and Qatar.
  • There is no viable alternative for most Gulf producers: the East-West Pipeline (Saudi Arabia) and the Abu Dhabi Crude Oil Pipeline provide partial bypass capacity but are insufficient.

Connection to this news: Iran's geographic control over the Strait — combined with its island fortifications and missile arsenal — gives it a unique veto power over global energy supply that no other state possesses to the same degree.

Iran's Military and Geostrategic Position in the Gulf

Iran has the longest coastline of any of the eight countries bordering the Persian Gulf, giving it extensive surveillance and interdiction capability. Iran's Islamic Revolutionary Guard Corps Navy (IRGCN) specialises in asymmetric warfare in the Persian Gulf — swarm boat tactics, mines, anti-ship missiles, and now drone strikes.

  • Iran controls the strategically located islands of Greater Tunb, Lesser Tunb, and Abu Musa, which have been disputed by the UAE since Iran seized them in 1971 — just before the UAE's formation.
  • The IRGCN operates separately from the regular Iranian Navy (Artesh) and is ideologically aligned with the Supreme Leader.
  • Iran has tested and deployed anti-ship ballistic missiles (ASBMs) capable of targeting aircraft carriers — a capability few states possess.
  • Iran's doctrine for Hormuz closure relies on "area denial" — making the strait too risky to navigate rather than physically blocking it.

Connection to this news: The 2026 closure is not a naval blockade in the traditional sense; it is asymmetric area-denial via drone strikes, exploiting the chokepoint's extreme narrowness and the fragility of commercial insurance markets.

Historical Precedent: The Tanker War (1980–1988)

During the Iran-Iraq War, both sides targeted oil tankers in the Persian Gulf and Strait of Hormuz in what became known as the "Tanker War." Iran attacked ships carrying Iraqi oil while Iraq targeted vessels dealing with Iran. The US eventually intervened with Operation Earnest Will (1987-88), re-flagging Kuwaiti tankers under the US flag and providing naval escorts.

  • During the Tanker War, over 500 ships were attacked and approximately 63 merchant vessels sunk.
  • The US Navy engaged Iranian forces directly in Operations Praying Mantis (April 1988), destroying two Iranian frigates and several gunboats.
  • Iran has periodically threatened Hormuz closure since 1979 — during nuclear negotiations (2011-12), US sanctions pressure (2019), and the Qasem Soleimani assassination (2020).
  • 2026 marks the first time Iran has moved beyond threats to sustained action.

Connection to this news: The historical Tanker War shows that Hormuz disruptions are not novel — but the 2026 crisis differs in scale and Iran's willingness to execute the threat, enabled by drone technology that makes area-denial far cheaper than conventional naval warfare.

India's Vulnerability to Hormuz Disruptions

India is uniquely exposed to Strait of Hormuz disruptions: it imports approximately 40% of its crude oil from Gulf producers transiting the Strait, hosts a large diaspora in the Gulf (approximately 8.9 million NRIs), and exports agricultural products, textiles, and pharmaceuticals to the Gulf region.

  • Nearly 40% of India's crude oil and a significant share of LPG supplies transit the Strait of Hormuz.
  • India's Strategic Petroleum Reserves cover only about 9.5 days of crude requirements at full capacity — well below the IEA's 90-day standard.
  • Gulf Cooperation Council (GCC) countries account for over $35 billion in annual remittances to India — the largest source of India's foreign exchange earnings from remittances.
  • The West Asia region accounts for approximately $11.8 billion of India's annual agricultural exports.

Connection to this news: India's energy, trade, remittance, and diaspora dependencies on the Gulf make the Hormuz crisis a multi-dimensional national security challenge, not merely an energy supply problem.

Key Facts & Data

  • Strait of Hormuz: 33 km wide at narrowest; navigable lanes 3 km each way.
  • Daily oil flow through Strait: ~20-21 million barrels (approximately 20% of global petroleum liquids).
  • LNG flow: approximately 20% of global LNG trade.
  • 84% of Strait's crude exports destined for Asian markets.
  • Iran controls: Greater Tunb, Lesser Tunb, Abu Musa islands (disputed with UAE).
  • 1973 Arab oil embargo: raised oil prices by ~300% in 4 months.
  • 2026 Hormuz disruption: estimated 3x the scale of the 1973 crisis (Rapidan Energy Group).
  • Tanker War (1980-88): 500+ ships attacked, Operation Earnest Will (US Navy escort, 1987-88).
  • India's Gulf NRI diaspora: approximately 8.9 million.