22nd October 2026
Reports of Israeli military preparations have raised fears of a new confrontation with Iran. For Britain and the world economy, the biggest danger may be the impact on oil supplies, inflation and interest rates.
The prospect of renewed Israeli attacks on Iran is raising fresh concerns about the stability of the Middle East and the consequences for the global economy. Reports published by the Financial Times on 21 October suggest that Israeli Prime Minister Benjamin Netanyahu has instructed the military to prepare for further strikes, potentially involving targets linked to Iran's nuclear programme, missile capabilities and energy infrastructure.
According to the newspaper's sources, an operation planned for around 10 October was abandoned after US President Donald Trump opposed restarting the fighting before the American midterm elections on 3 November.
However, reports about the timing and status of the alleged plans have been disputed, and military preparations do not necessarily mean an attack is imminent. It remains unclear whether a new operation has been authorised or whether diplomatic efforts might prevent another escalation.
Nevertheless, the possibility of renewed fighting presents a risk that governments, businesses and financial markets cannot afford to ignore.
The Strait of Hormuz is the critical issue
The most immediate economic danger would be disruption to energy supplies from the Gulf.
The Strait of Hormuz, between Iran and Oman, is one of the world's most important shipping routes. Roughly a fifth of global oil consumption normally passes through it, alongside significant volumes of liquefied natural gas.
If renewed fighting threatened commercial shipping, damaged energy infrastructure or led Iran to restrict traffic through the strait, the consequences could extend far beyond the Middle East.
Oil prices are influenced not only by actual shortages but also by the risk that supplies might be interrupted. Even before a physical shortage develops, traders may bid prices higher in anticipation of future difficulties.
A limited military operation might therefore trigger a temporary rise in prices. A prolonged confrontation involving shipping, oil installations or other Gulf states could have a much greater effect.
The distinction matters. Markets can recover quickly from a short-lived scare, but sustained disruption to supplies would be harder to overcome.
Britain would not escape the consequences
The UK produces some of its own oil and gas, but that does not insulate the country from international price movements. Oil is traded in global markets, and British buyers must compete with customers elsewhere.
A sharp rise in crude oil prices could push up petrol and diesel costs, increasing the expense of commuting, deliveries and transporting goods. Businesses facing higher distribution costs might eventually pass some of those increases on to customers.
Heating oil is another concern for households in rural Scotland and other parts of Britain without access to mains gas. Prices can respond to international oil market movements, leaving households exposed even when supplies remain available.
The effects would not stop at the fuel pump. Agriculture depends on fuel, fertilisers and transport, while food manufacturers and supermarkets face energy, packaging and distribution costs.
If higher energy prices persisted, the result could be another wave of pressure on household budgets. Retailers might initially absorb some of the additional costs, but their ability to do so would be limited if other expenses were rising at the same time.
For families already struggling with the cost of living, a renewed energy shock could mean less money available for other spending.
Interest rates could become a problem again
The consequences would also reach the Bank of England.
Higher energy costs can push inflation upwards, making it more difficult for the Bank to reduce interest rates. If inflation expectations became entrenched, policymakers might have to maintain higher rates for longer or consider further increases.
That would affect mortgage borrowers, businesses seeking finance and the Government's borrowing costs.
There is an additional difficulty. Higher energy prices can weaken economic growth at the same time as they increase inflation. Households have less money to spend on non-essential goods, while businesses face higher costs and potentially weaker demand.
Economists sometimes describe this combination as stagflation: rising prices alongside stagnant or weakening economic activity.
It is not an inevitable outcome of renewed attacks, but a prolonged disruption to energy supplies would increase the risk.
Other economies could suffer even more
Britain would not be alone in facing these pressures. European economies could experience higher energy bills and renewed inflation, adding to concerns about industrial competitiveness.
Some Asian economies, including China and India, are particularly exposed to Gulf oil supplies. A serious interruption could raise their import bills, weaken economic growth and increase pressure on currencies.
The United States has substantial domestic energy production, offering some protection against physical shortages. However, American consumers would still be exposed to higher petrol prices, while inflation could complicate domestic economic policy.
Developing countries that rely heavily on imported fuel and food could be especially vulnerable. Higher import bills can put pressure on government finances and leave poorer households struggling to afford basic necessities.
Three possible outcomes
There are three broad possibilities.
The first is that military preparations remain a means of applying pressure, with negotiations preventing another major offensive. Markets might remain volatile, but the economic damage could be limited.
The second is a renewed but relatively contained series of strikes. Oil prices and shipping insurance costs could rise sharply at first, before easing if the conflict did not spread.
The third, and most damaging, is a wider regional confrontation that seriously disrupts shipping or energy infrastructure. In that situation, higher oil and gas prices could feed through into transport, food, inflation and borrowing costs across the world.
The outcome will depend heavily on Iran's response, the position taken by Washington and whether other regional countries become involved.
A warning for the UK Budget
The timing is significant for Britain, with the Budget due on 28 October.
If energy prices rise again, Chancellor John Healey could face a more difficult economic environment, with pressure to support households and businesses while managing public finances.
There is little the UK Government can do to determine the course of events in the Middle East. It can, however, consider how resilient the British economy is to another external shock and whether its policies leave households and businesses able to withstand higher costs.
The immediate question is whether Israel launches another attack. The larger economic question is whether any new offensive triggers a prolonged disruption to Gulf energy supplies.
A short-lived exchange of strikes might unsettle markets without fundamentally changing the economic outlook. A wider conflict could do considerably more damage, reviving inflation just as businesses and households are trying to regain financial stability.
For Britain, the danger is that a conflict thousands of miles away once again becomes an unwelcome addition to the cost of filling a car, heating a home and buying the weekly shopping.