War in the Middle East has Exposed the Vulnerability of Global Choke Points

Brief Context

Context The conflict around the Strait of Hormuz has highlighted how modern power still runs through a surprisingly small number of vulnerable trade routes. About During the First World War, the struggle over the Dardanelles was driven by the strategic importance of a narrow waterway linking the Mediterranean to the Black Sea. The Dardanelles is a strategically significant strait that serves as a natural boundary between Europe and Asia, separating the Gallipoli peninsula in Eastern Europe from

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Syllabus: GS2/IR

Context

• The conflict around the Strait of Hormuz has highlighted how modern power still runs through a surprisingly small number of vulnerable trade routes.

About

• During the First World War, the struggle over the Dardanelles was driven by the strategic importance of a narrow waterway linking the Mediterranean to the Black Sea.
  • The Dardanelles is a strategically significant strait that serves as a natural boundary between Europe and Asia, separating the Gallipoli peninsula in Eastern Europe from Anatolia in Asia.
• In the Second World War, the Battle of the Atlantic was essentially a contest over whether Britain and its allies could keep open the sea routes on which the war depended. 
• Choke points did not merely influence those conflicts; they helped determine their outcome.
• Strait of Hormuz: It is one of the world’s most critical maritime choke points, carrying roughly one-fifth of global oil and petroleum consumption and a similar share of liquefied natural gas (LNG) trade in early 2025.

Other Choke Points

• Malacca Strait: A similar vulnerability runs through the Malacca Strait into the South China Sea. 
  • Malacca is the world’s busiest oil transit corridor, linking Gulf producers to east Asia’s industrial economies, while the South China Sea carries roughly one-third of global shipping.
  • Any conflict or disruption in the wider region would threaten not just the maritime routes surrounding it, but also global supply chains.

• The Strait of Bab el-Mandeb: Disruptions at the Bab el-Mandeb Strait in the Red Sea quickly raise shipping costs, delay deliveries, and affect food prices.

Modern Chokepoints Beyond Sea Routes

• Industrial and Digital Systems: Taiwan and China dominates global foundry capacity and produces most of the world’s most advanced logic chips.
  • It has turned the Taiwan Strait into a double choke point: a shipping corridor on one side, a fabrication bottleneck on the other.
  • Any conflict or disruption would cut the supply of components of smartphones to cloud computing and modern vehicles.
• Netherlands, ASML is the sole commercial supplier of extreme ultraviolet lithography machines, without which the most advanced semiconductors cannot be mass-produced.
• Race for Resources: Rare earths and minerals that form the components on which high-tech devices rely are also now a critical global choke point.
  • China is the leading refiner for 19 of 20 important strategic minerals, this means that the industries meant to define the coming era are exposed to a small set of processing hubs.
• Subsea Cables: Subsea cables carry the overwhelming majority of intercontinental traffic, and Egypt has become one of the critical passage points for cables linking Europe and Asia.
  • More than 90% of Europe-Asia subsea cable capacity runs through the Red Sea cable corridor, making it a choke point of a different kind.
• Climate Change: The Panama Canal has faced another increasingly-frequent disruption to trade flows – that of climate change.
  • Reduced water levels in the region constrained canal traffic and forced shippers to reroute or wait, highlighting how climate stress is now a first-order geopolitical variable.

Conclusion

• The Iran war has exposed the fragility of a global order built on narrow corridors and concentrated capabilities.
  • In normal times, these choke points are easy to overlook but in wartime, or even prolonged crises, they reappear as hidden levers of escalation.
• Today’s choke points also include chip fabs, lithography tools and fibre-optic cables on the ocean floor which have widened the vulnerability.
• The strategic significance of choke points lies not just in their throughput but in the absence of substitutes.

Source: WEF