China's dual-use deception: using research as cover for military planning

Global Watch | 2026-05-04

China is turning marine science into a military tool through its civil-military fusion strategy, blurring the lines between marine biology, geology and naval warfare.

Vessels such as the Dong Fang Hong 3, operated by Ocean University of China, conduct "mud surveys" that actually double as high-resolution seabed mapping for military navigation, as part of efforts to support PLA Navy submarine operations and anti-submarine planning.

This is the "dual-use" deception at work.

The same institution maintains close ties to the Naval Submarine Academy, allowing research findings to flow rapidly into military planning, and transforming scientific data into operational advantages.

The result is improved submarine navigation, more accurate "kill webs," and automated strike pathways for the People's Liberation Army (PLA) Navy –- capabilities with direct relevance to any contingency involving Taiwan or contested sea lanes in the First Island Chain.

What appear to be innocent marine research missions are in reality systematic efforts to map the seabed in fine detail, measure water conditions, and collect the environmental intelligence required for anti-submarine planning and seabed sensor deployment.

This civil-military fusion approach forms a core part of Beijing's long-term campaign to loosen the constraints of the First Island Chain and create new freedom of maneuver for its submarines and surface forces during a crisis.

China's fusion of science and strategy is clearly accelerating its undersea capabilities.

Taiwan's economy, tightly integrated into global semiconductor supply chains, would face immediate and severe disruption from any escalation supported by this enhanced undersea awareness.

Superior data processing

Yet data alone is not enough. The United States and its closest allies maintain a decisive lead in turning raw oceanographic information into actionable intelligence –- the critical "brain" behind effective submarine operations.

Advanced signal-processing algorithms aboard U.S. Virginia-class submarines, such as the AN/BQQ-10 sonar suite, filter biological noise from shrimp, whales and other marine life far more effectively than current Chinese systems.

This advantage is especially important in the complex underwater environments China is now working hard to map.

Australia and the United Kingdom further widen this gap through the AUKUS partnership, strengthening interoperability and undersea capabilities among allies.

Australia's P-8A Poseidon aircraft and extensive undersea surveillance networks provide powerful anti-submarine coverage across the Indo-Pacific, while it prepares to operate advanced nuclear submarines.

The United Kingdom contributes its highly quiet Astute-class submarines and sophisticated sonar and data-processing technology developed over decades of elite operations.

Extra-large unmanned undersea vehicles, such as the Boeing Orca, extend the combined allied reach.

These UUVs can remain submerged for months, functioning as autonomous scouts or mobile "smart mines" without putting crews at risk.

Intercept-resistant communications

Communications technology reinforces the alliance advantage.

Using blue-green laser systems developed through programs such as Sea Deep, satellites can transmit high-bandwidth data –- up to 1Mbps -– directly to submerged submarines.

Unlike traditional radio waves that broadcast in all directions and are easier to intercept, these narrow-beam lasers are extremely difficult for adversaries to detect unless they are positioned directly in the beam's path.

The real contest continues to be one of integration and execution, not merely collection.

For neighboring states across the region, this growing capability still casts a long shadow of conflict, driving higher defense spending and exposing fragile economies to sudden disruptions in trade and investment flows.