Expert: Global Sea Routes Becoming New Arena of Power Competition as U.S. Maritime Edge Erodes
Control of key shipping lanes is turning into a sharper geopolitical contest, a University of Greenwich expert argues, as China builds naval strength, Iran uses its position near the Strait of Hormuz and Russia promotes the Northern Sea Route. The United States’ long‑standing maritime advantage is under pressure.
A maritime security specialist from the University of Greenwich says global trade routes are emerging as a fresh front in great‑power competition, with several states now in a position to shape or disrupt shipping.
The expert notes that control of sea lanes has long influenced trade, navigation and military mobility. What’s changing, in this assessment, is that Washington is gradually losing the clear advantage it once held as other powers consolidate their own leverage at sea.
China has expanded its naval power, building up a large fleet and extending its reach beyond nearby waters. Its presence along major routes that link Asia with Europe and Africa is growing, supported by port access and other arrangements that can serve both commercial shipping and warships.
Iran occupies a strategic position around the Strait of Hormuz, the narrow passage linking Gulf energy exporters to global markets. Its forces and allied groups have repeatedly demonstrated an ability to threaten or interfere with traffic there, giving Tehran influence that reaches far beyond its coastline.
Russia, for its part, is developing the Northern Sea Route along its Arctic shore. As that route becomes more usable, it offers an alternative link between Europe and Asia. Moscow’s control over access, regulations and icebreaking support gives it a say in how and when that traffic moves.
For decades, the United States relied on its naval reach to underpin relatively open sea lines of communication. The expert’s warning that this edge is eroding points to a more crowded and contested maritime environment, where several states can impose costs or conditions on shipping.
For shipowners, crews and cargo planners, this translates into more complex routing choices and risk calculations. Decisions about whether to pass near Hormuz, rely on Arctic passages or seek alternative paths increasingly depend on assessments of political tension, sanctions and the likelihood of harassment at sea.
How this trend develops will be visible in a few concrete signals: new naval deployments or bases along key chokepoints, changes to rules governing use of Russia’s Arctic route, and patterns of commercial shipping diverting away from or back toward contested areas after security incidents.
Sources
- OSINT