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US, UK and Australia to develop underwater drone technology

Published May 31, 2026 · Updated May 31, 2026 · By Mark Jackson

US, UK and Australia to Develop Underwater Drone Technology

US UK and Australia to develop - The United States, United Kingdom, and Australia have announced their commitment to advancing underwater drone systems as part of their strategic defense collaboration, Aukus. This initiative aims to safeguard critical undersea infrastructure, including communication cables, while enhancing their collective military readiness. The uncrewed undersea vehicle (UUV) project is anticipated to be operational within the next year, marking a significant step in the alliance's efforts to secure technological superiority in maritime domains.

Aukus's First Major Project Under Pillar Two

The collaboration's focus on UUVs comes as part of Aukus's second pillar, which prioritizes joint development of advanced military technologies. While the overall budget for the initiative remains unspecified, the UK has pledged £150 million to the effort, reflecting its role in financing the project. The announcement was made during a security summit in Singapore, where the defense ministers of all three nations convened to discuss evolving regional threats. This follows concerns about the pace of progress on earlier Aukus initiatives, which had drawn scrutiny for delays in delivering tangible results.

"For too long in Aukus, we talked too much and delivered too little," said UK Defence Secretary John Healey. "That has now changed under our three governments."

Healey emphasized that the new project would introduce "cutting-edge payloads and enabling systems" to UUVs, allowing them to perform surveillance, reconnaissance, and logistics operations. These capabilities would not only protect seabed infrastructure but also enable rapid strikes against potential adversaries. The technology is designed to address vulnerabilities in undersea cables, which are vital for global internet connectivity and financial transactions, as well as pipelines that transport essential resources.

Counterbalancing China's Maritime Influence

The Aukus alliance, established in 2021, has been positioned as a response to China's expanding presence in the Indo-Pacific region. The trio's focus on undersea robotics and AI underscores their intent to counter China's strategic advantages in maritime domains, particularly in disputed waters like the South China Sea. By developing UUVs, the partners aim to bolster their ability to monitor and secure critical infrastructure, such as undersea cables that link the UK to global networks. This effort aligns with broader goals of strengthening deterrence in key regions, including the Pacific, Atlantic, and the Arctic.

Under Pillar Two, the collaboration will also explore innovations in long-range hypersonic missiles and other advanced capabilities. The joint statement highlighted the importance of these technologies in maintaining a competitive edge against rising powers. The UUV project, however, is the first major undertaking under this framework, signaling a shift from earlier commitments to nuclear submarines. While the submarine initiative remains a cornerstone of Aukus, the focus on drones reflects a growing emphasis on versatility and rapid deployment in underwater operations.

Strategic Importance of Undersea Cables

Undersea cables form the backbone of international communication, carrying over 95% of global data traffic. The UK, for instance, relies on approximately 60 such cables to maintain its connectivity, yet these have increasingly come under threat from Russian activity. Healey recently accused Moscow of conducting covert operations near the UK's shores, citing a 30% increase in Russian vessels observed in UK waters over recent years. This concern extends beyond the UK, as Chinese ships have been suspected of damaging cables in the Taiwan Strait and Swedish territorial waters. Multiple reports of cable disruptions in the Baltic Sea further highlight the global nature of this challenge.

In response to these threats, the UK has partnered with Norway to establish a new agreement for tracking Russian submarines in the North Atlantic. This pact, signed in December, aims to protect critical cables and pipelines that underpin the country's economic and technological infrastructure. The need for such measures has intensified as adversaries seek to undermine the reliability of these lifelines, which are essential for everything from financial systems to real-time communication.

Timeline and Operational Readiness

The UUV program is part of a broader effort to ensure the alliance's military projects are completed on schedule. While the total cost of the initiative is not yet disclosed, the UK's financial contribution highlights its strategic role. The project's timeline aligns with other Aukus objectives, such as the development of nuclear submarines, which are set to be operational in the 2040s. In the interim, the US and UK will rotate their existing nuclear-powered submarines to Australia, with the first personnel expected to arrive later this year.

Australia's Defence Minister Richard Marles addressed concerns about delays, stating that there was no "plan B" to replace the current submarine program. He confirmed that the HMAS Stirling base in Western Australia will be ready to accommodate the rotational forces by the end of 2027. Additionally, construction of a dedicated submarine yard in South Australia is underway, with work progressing at a steady pace. These steps are intended to ensure the country's military modernization remains on track, despite the ambitious timeline for nuclear-powered vessels.

While the UUV project is expected to advance more quickly, the broader Aukus initiative faces scrutiny over its pace. The three ministers did not explicitly address whether the UUV technology was specifically targeting Russian and Chinese undersea activities when questioned by the BBC. This omission leaves room for interpretation, though the project's goals clearly align with securing maritime infrastructure against potential threats.

Australian Military Upgrade and Global Implications

For Australia, the Aukus deal represents a transformative leap in military capabilities. The country will become the second nation to acquire US nuclear propulsion technology, following the UK, which has used it for decades. This partnership will allow Australia to integrate advanced nuclear-powered submarines into its navy, significantly enhancing its strategic reach and operational flexibility. However, doubts persist about whether the project will meet its deadlines, with some analysts questioning the feasibility of completing the first fleet by the 2040s.

Despite these challenges, the alliance remains a cornerstone of the Indo-Pacific security architecture. The focus on underwater drones and nuclear submarines underscores the trio's commitment to countering China's growing influence and addressing Russian activities in the region. By investing in cutting-edge technologies, the partners aim to establish a robust defense network that can adapt to evolving threats in both peacetime and conflict scenarios.

The Shangri-la Dialogue, where the ministers gathered, provided a platform to showcase Aukus's progress. While the alliance has faced criticism for its initial delays, the recent emphasis on UUVs suggests a renewed focus on delivering results. The technology's potential to protect undersea cables, conduct surveillance, and support logistics operations highlights its strategic importance in an era where digital infrastructure is increasingly vital to national security.