What's Happening?
China is increasingly utilizing dual-use research vessels for undersea data collection, raising concerns about its potential to achieve 'undersea data dominance.' These vessels, equipped with seabed-mapping systems and deploying underwater gliders, conduct
surveys that can be repurposed for military planning, such as optimizing sonar performance and supporting long-range underwater surveillance. Analysis of Automatic Identification System (AIS) data revealed that Chinese-flagged ships spend significantly more time on the high seas compared to vessels from other nations, with activity near subsea infrastructure sharply increasing in 2024. Case studies of vessels like the Xiang Yang Hong 06 and Ke Xue show repeated, survey-like movements near strategically significant cable systems, including a likely intelligence, surveillance, and reconnaissance (ISR) mission near Russia in 2024.
Why It's Important?
This activity poses a significant threat to critical undersea infrastructure, including fiber-optic cables and gas pipelines, which are vital for global communication, economic stability, and national security. For the U.S. and its allies, China's pursuit of undersea data dominance could provide it with advanced force options for gray zone harassment or sabotage, potentially disrupting global networks without triggering overt conflict. The ability to map the seafloor and understand oceanographic conditions offers a strategic advantage in military operations, impacting naval capabilities and intelligence gathering. This development necessitates a stronger deterrent at sea and enhanced maritime domain awareness to protect essential underwater assets and maintain strategic stability.
What's Next?
The U.S. and its allies are urged to strengthen maritime domain awareness (MDA) and publicly expose suspicious activities through international forums. A multilateral coalition of maritime law enforcement is proposed to jointly patrol near critical infrastructure to deter gray zone activities. Additionally, investment in regional repair hubs and multinational cable repair fleets is recommended to build resilience against threats to underwater infrastructure. These measures aim to improve deterrence by detection and exposure, enhance MDA, and ensure the integrity of critical undersea networks. Continued monitoring of Chinese research vessel activities and diplomatic efforts to address these concerns will be crucial.
Beyond the Headlines
The 'weaponization' of dual-use research vessels highlights a broader strategy by China to leverage scientific and commercial capabilities for military and geopolitical advantage. This gray zone tactic operates below the threshold of armed conflict, making it challenging to respond to effectively. The implications extend beyond immediate infrastructure threats to long-term strategic competition for control and influence in the maritime domain. The collection of detailed undersea data can provide a comprehensive understanding of the operational environment, enabling more effective deployment of submarines, anti-submarine warfare, and intelligence operations. This silent competition for undersea dominance could redefine naval strategies and international maritime law, pushing for new norms and agreements to ensure the security of global undersea infrastructure.
