NATO is testing 5G connectivity and AI-supported sensing for military applications, according to a report tracked by the Digital Watch Observatory, marking the alliance's latest step in adapting commercial network technology to defence requirements.

The trial places NATO among a growing set of defence organisations that treat carrier-grade 5G — rather than proprietary military radio — as candidate infrastructure for high-bandwidth, low-latency battlefield and base communications. AI-supported sensing, the second component of the test, points to systems that extract operational awareness from radio signals and network data, a technique the telecom industry knows as joint communication and sensing, or JCAS.

Why does the military want commercial 5G?

Defence forces face the same traffic pressures as commercial operators: video feeds, sensor streams, command applications and autonomous platforms all demand throughput and latency that legacy tactical radios struggle to deliver. 5G's network slicing, in principle, lets a single infrastructure carry isolated traffic classes — one slice for command traffic, another for mass sensor data — with guaranteed performance.

The appeal for NATO is also industrial. Alliance members operate dozens of incompatible tactical communication systems, and interoperability remains a chronic friction point in coalition operations. A standards-based technology from 3GPP offers a common technical baseline that member states can procure independently while still interworking, an argument that has pushed 5G-for-defence programmes in several NATO countries.

What does AI-supported sensing add?

AI-supported sensing extends the 5G proposition beyond connectivity. In current 3GPP and research work, sensing uses radio signals themselves as a measurement instrument: signal reflections and channel disturbances can reveal the presence, position or movement of objects, without a dedicated radar. AI layers process these channel signals to classify what the network detects.

For military users, the same capability raises the prospect of persistent, low-cost situational awareness across deployed infrastructure — as well as hard questions about jamming, spoofing and the security of AI models operating in contested spectrum.

What are the security implications?

The observatory's tracking of the test underlines the governance dimension. Military adoption of 5G ties alliance communications to a commercial vendor ecosystem and supply chain that regulators have spent years scrutinising. Equipment provenance, software update chains and core-network placement all become policy questions, not just procurement decisions.

For telecom vendors, NATO interest represents a second demand pool for 5G equipment at a moment when carrier capex in several mature markets has plateaued. Defence contracts, however, come with security certification and sovereign-control requirements that few vendors currently meet at scale.

What comes next?

The Digital Watch Observatory item records the test as a development in the intersection of digital policy and security rather than announcing a procurement programme. The relevant question for the telecom sector is whether the trial progresses from experimentation to standardised requirements — a step that would determine whether 5G and JCAS move into alliance acquisition timelines in the coming years.