Britain is quietly preparing for potential food shortages this summer if the conflict involving Iran drags on and the Strait of Hormuz remains precarious. A secret government assessment, codenamed "Exercise Turnstone," has modelled a "reasonable worst-case scenario" for June 2026. Officials from Downing Street, the Treasury, Ministry of Defence, and other departments are gaming out the fallout — including serious disruptions to carbon dioxidesupplies that are critical for the food industry.
The GB News report (and similar coverage in The Times and BBC) lays it out plainly: a prolonged closure of the Strait of Hormuz — the narrow chokepoint through which much of the world's oil and gas flows — could drive up energy and gas prices, hammer ammonia and fertiliser production, and slash CO2 availability to as low as 18% of normal levels in a bad scenario. CO2 is used to stun and slaughter over two-thirds of Britain's chickens and nearly all pigs, to extend the shelf life of packaged meats, salads, and baked goods, and for carbonating drinks.
The result? Reduced choice on supermarket shelves, potential shortages of chicken, pork, and other staples, and knock-on effects for hospitality and brewing. Healthcare would take priority for remaining CO2 (dry ice for organs, vaccines, and blood supplies), leaving the food sector to scramble. The government has already restarted a bioethanol plant in Teesside to boost CO2 and is preparing emergency powers under the Civil Contingencies Act.
This isn't panic-mongering. It's prudent planning for a very real vulnerability.
What happens in the Middle East doesn't stay in the Middle East.
The Strait of Hormuz handles around 20-30% of global oil trade and significant liquefied natural gas flows. A sustained blockade, if it starts again, sends shockwaves through energy markets, fertiliser production (heavily dependent on natural gas), shipping routes, and ultimately food systems worldwide. Higher fuel costs raise the price of everything from farm machinery to trucking. Fertiliser shortages hit crop yields in importing nations. Disrupted shipping delays grains, oils, sugar, and other commodities.
The UK is particularly exposed because it imports a large share of its food and relies on complex, just-in-time supply chains. But the same pressures threaten Europe, Asia, and parts of the developing world. UN agencies and analysts have already warned that prolonged disruption could trigger broader food security crises, higher prices, and reduced availability — especially in countries already facing tight margins.
We've seen this movie before. The 2022 Ukraine conflict spiked fertiliser and grain prices globally. Now another geopolitical flashpoint is exposing how fragile our modern food system has become after decades of globalisation, offshoring production, and prioritising efficiency over resilience.
The Deeper Lesson: Vulnerability by Design
This looming UK scenario should serve as a wake-up call far beyond Britain. Western nations (including Australia) have spent years:
Running down domestic energy and fertiliser capacity in pursuit of net-zero targets.
Becoming heavily dependent on long, fragile supply chains that cross volatile regions.
Allowing food production to be treated as just another global commodity rather than a strategic national asset.
When a single chokepoint like Hormuz can threaten chemicals for meat processing or gas for fertilisers, we're not as secure as the "just-in-time" cheerleaders claimed.
True food security requires redundancy, domestic production where possible, strategic reserves, and energy independence — not endless reliance on distant suppliers and vulnerable sea lanes. It means supporting local farmers, maintaining fertiliser and energy infrastructure, and avoiding policies that make nations hostages to foreign conflicts.
Governments love to talk about "resilience" after the fact. The public deserves leaders who build it before the crisis hits.
The UK's contingency planning shows the system can react when forced. But reactive measures and emergency legislation are poor substitutes for proactive sovereignty in food and energy.
Whether the current Middle East tensions escalate or cool, the underlying fragility remains. A single major disruption — war, blockade, or even a major plant failure — can cascade into empty shelves and higher prices.
This should be a global warning: modern societies run on thin margins. When geopolitics meets just-in-time supply chains, the result is rarely convenient. Nations that fail to learn from Britain's current planning exercise risk finding out the hard way that food security isn't optional — it's foundational.
Time to prioritise resilience over ideology. Empty supermarket shelves have a way of focusing the mind.
https://www.gbnews.com/news/iran-war-britain-food-shortages-middle-east-conflict-supplies