Alternative PNT and GNSS-Denied Navigation

Satellite-based Positioning, Navigation and Timing (PNT) systems such as GPS and Galileo have become foundational to both civil infrastructure and military operations across Europe. From synchronising power grids and financial networks to enabling precision strike and autonomous systems, their signals support nearly every dimension of modern life.

Because PNT signals synchronise power grids and financial networks and enable precision strike and autonomous systems, their loss is not a narrow military problem but a systemic vulnerability. The capability question is how to layer alternative and complementary navigation and timing so that critical functions degrade gracefully rather than failing outright when satellite signals are contested. For European defence and infrastructure, resilience in this layer is a precondition for almost every other capability, which is why GNSS-denied navigation has moved from a specialist concern to a planning priority. The difficulty is that the dependency is diffuse: it is embedded in civilian systems few people associate with defence, so the true exposure is larger than any single programme suggests.

Strategically and from an investment angle, the question is where resilient PNT capability is sourced and who controls it. Readers should weigh the dependencies between layers, the cost of hardening versus the cost of failure, and how policy and procurement prioritise sovereign timing and navigation. Because the vulnerability is shared across civil and military domains, durable demand is likely, but value will concentrate among providers whose solutions integrate cleanly with existing systems rather than demanding wholesale replacement. The practical test is whether resilience can be added incrementally to infrastructure already in service. The full DFM Analysis report sets out the complete source base, the supporting figures and the detailed assessment behind this view.