Summary
The Supply Chain Risk Hiding in Plain Sight
Start with a single number: 1.7 billion tonnes. That’s how much food is shipped across the world’s oceans every year, including around 400 million tonnes of wheat and grain.
Add the fertilisers needed for future harvests and the handful of maritime chokepoints through which much of this trade must pass, and a troubling reality emerges: global food security depends on a fragile network at sea.
The oceans are the bloodstream of the world’s food supply. For an adversary that thinks in terms of systems rather than individual targets, this presents a powerful vulnerability. One that can be exploited without firing a single missile.
This is Not Hypothetical
For decades, governments and businesses have focused on protecting supply chains from disruption. But what happens when disruption itself becomes a strategic weapon? The war in Ukraine provided a glimpse of the answer.
When Russia blockaded Ukraine’s Black Sea ports in March 2022, global food prices surged. The UN Food Price Index rose by 12.6% in a single month, the largest increase since records began.
The shock was inevitable. Ukraine supplies around 10% of the world’s traded wheat, 15% of its corn, and almost half of all internationally traded sunflower oil. Within weeks, a major source of global food had been cut off from world markets.
The Consequences Are Felt Far Beyond Europe
Countries across Africa, the Middle East and South Asia, many of which are heavily dependent on food imports, faced rising prices, supply shortages and growing humanitarian pressures. When Russia later withdrew from the Black Sea Grain Initiative, an estimated six to seven million more people in Africa were pushed into acute hunger.
This was not simply collateral damage. Russia’s military operates a mine-laying system called Zemledelie, the Russian word for “agriculture”. The name is revealing. It reflects an understanding that food can be used as a weapon.
The dependency is deeper than most people realise. 80% of global trade, including agricultural commodities, is seaborne. 76% of EU cereal exports are shipped. 80% of globally traded wheat moves by sea. And all of it converges on a handful of chokepoints: the Turkish Straits, the Strait of Hormuz, the Bab el-Mandeb and the Strait of Malacca.
When one is disrupted, markets tighten. When several face simultaneous pressure, the consequences become systemic.
The challenge is not simply the movement of food itself. It is the interconnected nature of the wider supply chain.
A disruption to maritime access can trigger fertiliser shortages. Fertiliser shortages reduce agricultural yields. Lower yields increase food prices. Rising prices contribute to political instability and social unrest.
The effects compound rapidly.
The fertiliser market illustrates the point. Russia and Belarus remain major suppliers to global agriculture, and many countries rely heavily on them for key inputs. Any disruption to the maritime routes that serve these exports would affect food production long before consumers notice empty shelves.
For organisations responsible for supply chains, procurement, logistics or critical infrastructure, this is no longer a theoretical risk. It is a strategic dependency.
The Next Generation of Supply Chain Disruption
The lessons of the Black Sea are unlikely to remain confined to conventional conflict.
Future disruptions may be harder to attribute and more difficult to counter.
Mining operations, cyberattacks against ports, interference with navigation systems, and targeted disruption of logistics networks can all achieve strategic effects without crossing traditional thresholds of war.
The objective is not necessarily to stop shipping altogether. It is to increase friction.
A modest increase in insurance costs, port delays or transit uncertainty can make trade routes commercially unattractive. Supply chains slow, costs rise, and resilience is eroded.
The cyber domain presents similar vulnerabilities.
Port cyberattack against food logistics is equally elegant. Ransomware, NotPetya, cost Maersk $300 million in 2017. A sustained attack on Rotterdam or Antwerp didn’t destroy infrastructure, but it degraded operational efficiency by 30% and cascaded through European food supply chains within weeks. The capability is proven. It simply hasn’t been deployed at food-critical infrastructure with strategic intent.
Why This Matters to Senior Leaders
Many organisations continue to assess supply chain risk through an operational lens: supplier resilience, inventory levels, transportation options and contingency planning.
These remain essential.
But the emerging threat is strategic.
Food, fertiliser, shipping routes and logistics networks are increasingly part of a wider geopolitical competition. They can be manipulated to create economic pressure, influence political decisions and shape international relationships.
This changes the nature of resilience.
The key question is no longer simply, “How do we protect our supply chain?” It is: “How exposed are we to the deliberate manipulation of the systems on which our supply chain depends?”
The distinction matters. One is an operational challenge. The other is a strategic risk capable of reshaping markets, governments and entire regions.
Looking Ahead
The weaponisation of food security is not a future scenario. It is already visible in today’s geopolitical landscape.
For governments, investors and business leaders, understanding these vulnerabilities is becoming as important as understanding energy security or cyber risk.
The organisations that recognise this shift early will be better positioned to anticipate disruption, strengthen resilience and make informed strategic decisions.
Those that do not may find themselves reacting to crises that began thousands of miles away, in places they never considered part of their supply chain.
The hunger weapon is already in use. The question is whether we understand its implications before the next disruption arrives.