A senior NATO official has called for the alliance’s Cold War-era fuel pipeline network to be extended further east, underlining growing concern over whether NATO can sustain large-scale operations on its eastern flank in a future conflict with Russia.

NATO is considering whether to extend its long-established military fuel pipeline network deeper into eastern Europe, as alliance planners place renewed emphasis on the practical demands of sustaining combat operations on the flank closest to Russia. Reuters reported on 18 March that Lieutenant General Kai Rohrschneider, a senior NATO logistics official, has advocated an eastward extension of the system into Poland, the Baltic states, Finland and Romania.

The existing NATO Pipeline System was built during the Cold War to supply aviation fuel and other petroleum products to allied forces in western Europe. The network stretches for about 10,000 kilometres but currently ends in western Germany, leaving eastern allies more dependent on road, rail and local storage for bulk fuel supply. Rohrschneider told Reuters that fuel logistics had become one of the alliance’s main supply constraints, particularly in scenarios involving large-scale, high-intensity operations.

That matters because fuel is not a secondary detail in modern warfare. Air operations, armoured manoeuvre, long-distance reinforcement and sustained training all rely on dependable, protected and high-volume fuel delivery. Where that delivery depends too heavily on lorries, rail nodes or exposed depots, the system becomes slower, more vulnerable and harder to scale. Reuters reported that NATO’s internal military consensus recognises the need to improve the eastern fuel network, even though political approval and financing have not yet been settled.

The project under discussion could cost about €21 billion and take 20 to 25 years to complete. Those figures alone explain why the proposal remains at a formative stage. Extending a buried fuel distribution system across multiple states would involve not only military planning, but also land use, environmental permitting, industrial capacity, financing and agreement among allies on priorities and burden-sharing. Reuters said the issue is being discussed ahead of the next NATO summit in Ankara in July.

The significance of the proposal lies less in the pipeline itself than in what it says about NATO’s current concerns. For much of the past decade, European defence debate has focused on force levels, ammunition production, air defence and industrial output. Those issues remain central, but the pipeline story points to another reality: deterrence depends not only on what forces the alliance has on paper, but on whether they can be moved, supplied and sustained under wartime conditions.

This is also consistent with the European Commission’s wider military mobility agenda. The Commission says military mobility work must cover not only transport corridors and dual-use infrastructure, but also the resilience of strategic infrastructure and the energy supply needed for military transport. In other words, the movement of forces and the supply of fuel are increasingly being treated as part of the same readiness problem.

For the eastern flank, the operational logic is straightforward. Poland, the Baltic states, Finland and Romania are closer to the likely zones of any future NATO-Russia confrontation than the western terminus of the present system. If reinforcement plans assume rapid movement of aircraft, armour and support units to the east, fuel distribution becomes a limiting factor. A pipeline network would not remove every vulnerability, but it could reduce reliance on slower or more exposed transport routes and increase the alliance’s capacity to sustain operations over time. That is the military argument now being pushed more openly into public view.

What is not yet clear is how quickly that argument will translate into a political decision. Reuters reported that support exists at the military level, but that governments still need to decide whether the investment is justified and how it would be financed. That leaves the proposal in a recognisable NATO category: strategically serious, operationally logical, but dependent on long-cycle political agreement among allies with different fiscal pressures and threat perceptions.

Even so, the fact that the issue is now being aired publicly is in itself significant. It suggests that, in 2026, NATO’s debate about deterrence is shifting further from declarations of intent towards the mechanics of warfighting support. Ammunition stocks, military mobility, air defence cover, infrastructure resilience and fuel supply are increasingly part of one connected discussion. The proposed eastward expansion of the fuel pipeline network belongs in that category: not a symbolic project, but a test of whether Europe and the alliance are prepared to invest in the less visible foundations of military readiness.