Stretching just 33 kilometres at its narrowest point, the Strait of Hormuz does not look like a place capable of upending the world economy. Wedged between Iran to the north and Oman and the United Arab Emirates to the south, connecting the Persian Gulf to the Arabian Sea, it has for decades been one of the most strategically fraught patches of water on earth. In early 2026, it became the epicentre of an international crisis — one whose consequences are still unfolding.
The roots of the current standoff lie in decades of failed diplomacy. The Strait of Hormuz has been a flashpoint for American Iranian tensions since the 1980s, and those tensions came to a head on 28th February 2026, when the United States and Israel launched strikes against Iran. Washington’s stated rationale was that diplomatic efforts to halt Iran’s nuclear and ballistic missile programme had been exhausted, and that it could not allow Tehran to develop a nuclear weapon. Iran, in turn, struck back against Israeli and American-allied states in the Gulf.
Iran’s response extended beyond the military. The Iranian government announced it would shut the Strait of Hormuz to shipping. By March 2026, the BBC estimated that the number of vessels attempting to cross the strait had fallen to just 5% of pre-conflict levels, a near-total cessation of one of the world’s busiest maritime routes.
In 2025, approximately 20 million barrels of oil and oil products transited the strait every day, amounting to roughly £447 billion worth of energy trade annually. Some 20% of global petroleum and 27% of all globally traded oil moves through this single waterway, drawn from the fields of Iran, Iraq, Kuwait, Qatar, Saudi Arabia and the UAE. The UN Trade and Development agency estimates that nations including Sudan, Sri Lanka, Tanzania and Somalia depend on the strait for around 30% of their fertiliser imports.
In 2022, 82% of oil leaving the strait was bound for Asia, with China alone accounting for an estimated 90% of Iranian oil exports. China is now the country most directly affected by the disruption, facing a potential fuel crisis that reaches into everyday life. Saudi Arabia and Qatar have sought alternative routes to maintain some level of trade, but the logistical and financial costs of doing so are substantial.
When supply is restricted, prices rise, and in this case the West and Asian nations find themselves competing to remain adequately stocked with oil and fuel. The Brent crude benchmark price, which had sat at around $70 a barrel before the conflict, climbed to $100, a 43% increase that has reverberated through every oil-dependent economy on the planet.
The 32 member nations of the International Energy Agency — including the United Kingdom — collectively released 400 million barrels of oil from strategic reserves in an attempt to stabilise prices, with the UK contributing 13.5 million barrels from a stockpile of roughly 1.2 billion. Thirty-five countries, including the UK, have expressed readiness to contribute to efforts to ensure safe passage through the strait, signalling the waterway’s significance not merely as an economic artery but as a matter of global political stability.
The United States has taken a more nuanced position, permitting ships linked to Pakistan, China, and Iran to continue safe passage through the strait in a calculated attempt to prevent a total collapse of global oil prices. Washington has also announced the deployment of an amphibious assault ship with the aim of destroying Iranian missile and drone stockpiles, a move intended to make the waterway safer for commercial traffic.
Yet America’s requests for broader allied military support have met with limited enthusiasm. The UK, France and Germany have all stopped short of providing the interventional backing Washington sought, reflecting the deep discomfort among European governments about direct military involvement in the Persian Gulf.
The economic implications extend well beyond energy markets. The International Monetary Fund has warned of the possibility of a global recession if essential supply lines for oil, gas, fertiliser, and industrial chemicals remain severed for an extended period. Long-lasting infrastructural damage to the shipping routes that underpin international trade could take years to repair.
In the United Kingdom, the consequences are already being felt. Rising energy prices are stoking inflation, with petrol prices having already climbed and household gas bills expected to follow later in 2026. UK wholesale natural gas prices have risen by approximately 75% between February and late March — a staggering increase in a matter of weeks. The prospect of Bank of England interest rate cuts, which had been anticipated earlier this year, now looks far less likely as policymakers contend with renewed inflationary pressure.
Looking forward, President Donald Trump has announced his intention to clear the strait of mines and restore safe passage for all ships and has urged other nations to provide naval support in the Persian Gulf, proposing a system of naval escorts for container ships. However, Lloyd’s List has cautioned that even with escorts in place, traffic through the strait would likely recover to no more than 10% of its former volumes, both because of the cost of such operations and because insurance companies remain deeply wary.
On the diplomatic front, prospects look bleak. Iran’s foreign minister, Abbas Aragchi, abandoned peace talks in Islamabad without meeting Steve Witkoff or Jared Kushner, the envoys dispatched by the Trump administration.
The Strait of Hormuz has always been a place where geography, geopolitics, and economics collide. In 2026, that collision has become a full-scale crisis, and its aftershocks will be felt for a long time to come.