Iran Captures US Dive-LD Underwater Drone

Iran's Revolutionary Guards announced the capture of a US uncrewed submarine, identified as a Dive-LD, at the entrance to the Strait of Hormuz. The Dive-LD is a large autonomous underwater vehicle built by California-based defence company Anduril, measuring about 19 feet long. It is designed to operate without a crew, carrying out tasks that would otherwise put naval personnel at risk.

The capture appears to be the first known instance of an operational deployment of the Dive-LD, a capability that only entered service with the US Navy a little more than a year and a half ago. The Iranian statement described the vessel as 'one of the most modern, intelligent and unmanned submarines of the terrorist American army,' adding that 'this submersible is equipped with the latest technologies.'

According to Anduril, the Dive-LD can perform mine countermeasures, seabed mapping, intelligence gathering, and inspection of underwater infrastructure such as cables and pipelines. Anduril describes it as an 'attritable' autonomous system, built specifically to operate in dangerous environments where the loss of the vehicle is an accepted possibility, so that human crews don't have to enter the riskiest parts of an undersea mission.

The cost of a Dive-LD unit is approximately $2.5 million each, according to a 2024 report by US military news outlet DefenseScoop. On performance, Anduril's website states the vehicle can operate for up to 10 days without returning to base and is built to dive to depths of up to 6,000 metres.

The Pentagon has pushed back on the idea that a major asset was lost, with CENTCOM spokesperson Capt. Tim Hawkins saying the drone had been 'essentially dead in the water for more than a day' before Iran's announcement. A separate Pentagon statement described the captured device as an older model that 'neither collected sensitive data nor carried any classified sonar or radar equipment.'

The Navy's purchase of Dive-LD units falls under 'Project Replicator,' a Pentagon modernisation drive launched in 2023 aimed at mass-producing autonomous systems partly as a deterrent against China. The US military has been investing heavily in unmanned underwater and surface vessels as a cheaper way to monitor large stretches of ocean and track adversary ships without risking sailors' lives.

The incident has put the US military's strategy of using unmanned underwater vessels under an unusual public spotlight. The capture of the Dive-LD has significant implications for the ongoing tensions between the US and Iran, and highlights the importance of autonomous systems in modern naval operations.

In the broader context, the use of autonomous underwater vehicles like the Dive-LD is becoming increasingly important for naval operations. The ability to operate without a crew, carrying out tasks that would otherwise put naval personnel at risk, makes them an attractive option for militaries around the world. As the US and other countries continue to invest in these technologies, it is likely that we will see more incidents like this in the future.

The significance of this incident should not be underestimated. The capture of a US underwater drone by Iran is a major embarrassment for the US military, and highlights the risks associated with using autonomous systems in hostile environments. However, it also demonstrates the importance of these systems in modern naval operations, and the need for continued investment and development in this area.

In conclusion, the capture of the US Dive-LD underwater drone by Iran's Revolutionary Guards is a significant incident that highlights the ongoing tensions between the US and Iran. The use of autonomous underwater vehicles like the Dive-LD is becoming increasingly important for naval operations, and this incident demonstrates the risks and benefits associated with these systems.