Nearly nine-tenths of global goods travel by sea, but this liquid immensity is far from an open space: it flows through a handful of narrow gateways, with no alternative bypass. Herein lies the major strategic vulnerability of the nations that depend on it — with Europe on the front line.
A Mapping of Maritime Power
Globalization has a maritime face. An AFP map lists the major strategic passages — straits, canals, and capes — through which the bulk of global trade transits, with the size of the circles indicating the average number of daily transits. Here we find the great names in the geography of power:
- Malacca, a vital artery crossed daily by hundreds of ships;
- Hormuz, the outlet for Gulf oil;
- Suez and Bab el-Mandeb, linking Asia to Europe via the Red Sea;
- Panama and Gibraltar;
- the Bosphorus, through which the wheat of the Black Sea flows.
The density of fast ships, superimposed on this map, outlines the major corridors of global freight, those invisible highways that structure the global economy.
The Tyranny of Passages with No Alternative
The most valuable insight from this mapping lies in a few underlined names: Hormuz, the Bosphorus, the Øresund. These are the straits for which no bypass route exists. To close Hormuz is to suffocate a major share of the global hydrocarbon trade; to block the Bosphorus is to lock Russia and Ukraine inside the Black Sea.
A bottleneck with no escape route becomes a weapon in the hands of whoever controls it, or whoever manages to threaten it.
This obsession with inescapable choke points is not unique to Europe: it also explains the “Malacca dilemma” that haunts Beijing, a vital energy transit point that China does not militarily control.
Hormuz Put to the Test: Theory Becomes Crisis
The Strait of Hormuz illustrates, better than any other, what the closure — even partial — of a strategic choke point actually means. According to BBC Verify, before the outbreak of war with Iran on February 28, 2026, about 138 ships crossed this strait every day, carrying one-fifth of the world’s oil supply.
The result of the Iranian attacks on maritime traffic was immediate:
- daily traffic has plummeted by about 95% since the start of the conflict;
- only 99 ships have crossed the strait since the beginning of March, an average of 5 to 6 ships per day;
- about one-third of these recent crossings involved vessels with links to Iran, including 14 vessels flying the Iranian flag;
- 9 ships belonged to companies linked to China, while 6 others listed India as their destination.
These figures, documented by BBC Verify using data from Kpler and the Joint Maritime Information Centre, show that a geographical choke point, once threatened, can collapse within weeks a flow that has sustained the global economy for decades.
The Long View and the Cost of Bypassing
The map published by the AFP bears a date, January-June 2026, which is not neutral: it already records the footprint of recent crises, with an abnormally busy Cape of Good Hope. Fleeing the harassed Red Sea and a temporarily blocked Strait of Hormuz, ships have resurrected the ancient route around Africa, which is ten days longer.
The lesson is one of the long term: when strategic shortcuts close, the sea returns to its old paths — and the world pays the price in delays and extra logistical costs, a bill that ultimately falls on importing economies, with Europe at the forefront.
A Non-Negotiable European Dependence
For Western European nations, largely devoid of their own energy resources, this geography of bottlenecks is not an academic abstraction. Every closed or threatened choke point — Hormuz for Gulf oil, Bab el-Mandeb and Suez for Asian freight, the Bosphorus for Black Sea grain — mechanically translates into rising costs, longer supply times, and increased exposure to power struggles over which European capitals, most of the time, have no direct leverage.
The question raised is therefore not merely maritime or commercial: it touches upon the ability of nations to guarantee their own energy and food supplies without depending on a thread as thin as the free movement of goods through a few square kilometers of international waters.
Outlook
The map of the straits recalls a truth that the apparent fluidity of global trade too often masks: globalization relies on physical, finite, and inherently vulnerable transit points. Until European nations rethink their energy and logistical sovereignty in light of this constrained geography, they will remain hostages to power struggles played out far from their borders, in waters they do not control.
