China’s Growing Presence at Sea and What It Signals

Tensions in the South China Sea are back in focus, with reports that China has deployed vessels and installed a floating barrier at the entrance to Scarborough Shoal, a disputed area also claimed by the Philippines.

Satellite imagery shows fishing boats, coast guard presence, and a barrier stretching across the shoal’s entrance, a move that appears aimed at restricting access to a long contested fishing ground.

Scarborough Shoal has been a point of friction for years, but what stands out is how these situations continue to evolve. Rather than open confrontation, we’re seeing “grey-zone” tactics, the steady use of presence, pressure, and control to shift the balance on the water.

On its own, this is a localised issue. But it’s hard to ignore the broader context.

In the Taiwan Strait, China has been increasing military drills and presence, signalling growing pressure in one of the world’s most critical shipping routes. Any escalation there would have immediate and far-reaching consequences for global trade.

That’s where the connection lies.

What’s happening in the South China Sea may be smaller in scale, but it offers a glimpse into how control at sea is being asserted, gradually, and without crossing into outright conflict.

For shipping and logistics, that matters.

We’ve already seen how quickly disruptions can ripple through supply chains. If similar pressure builds in more critical trade corridors, the impact would be on a completely different scale.