By Mohsen Behzad Karimi, EU Correspondent & Analyst, Green Mobility Magazine.
Defence capability is often measured in platforms and personnel. Far less attention is paid to the mobility and logistics infrastructure that allows force to move, endure, and regenerate. This analysis argues that sustainable mobility has become one of Europe’s most consequential defence enablers, directly translating strategic autonomy into operational readiness.
European defence capability is usually assessed through force structure, procurement, and spending levels. Yet recent conflicts have reaffirmed an older strategic truth: logistics, energy access, and mobility infrastructure determine operational endurance. The war in Ukraine has exposed the fragility of fuel-dependent supply chains and the decisive value of resilient transport systems. Against this backdrop, sustainable mobility must be understood not as an environmental adjunct, but as strategic infrastructure at the heart of European defence planning.
Mobility, energy, and geopolitical dependency
Contemporary geopolitics is increasingly shaped by control overflows rather than territory alone. As geopolitical scholar David Criekemans has argued, power in the 21st century lies in the capacity to structure dependencies and manage strategic corridors, energy routes, transport networks, and logistical chokepoints [1]. Mobility systems, therefore, function as critical geopolitical instruments that embed either resilience or vulnerability. For Europe, this dynamic manifests most acutely in a critical vulnerability: its transportation sector’s near-total reliance on imported fossil fuels.
Europe’s historic reliance on fossil-fuel-based mobility has created systemic exposure to external suppliers, price volatility, and disruption. This dependency is a direct operational liability: fuel supply insecurity constrains mobilisation timelines, operational tempo, and sustainment. Sustainable mobility, through electrification, efficiency, and energy diversification, reduces this exposure at the system level, translating strategic autonomy into operational reality.
Ukraine and the return of logistics realism
The war in Ukraine has reinforced a lesson often acknowledged but rarely prioritised: logistics precede manoeuvre. Russian forces encountered repeated operational failures not due to a lack of platforms, but rather to overstretched supply lines, fuel shortages, and inadequate transport resilience [2].
By contrast, Ukraine’s defensive endurance has depended heavily on rail-based logistics, decentralised depots, and rapid infrastructure repair. Electrified rail corridors and redundancy in transport routes have allowed continuity under sustained attack. For Europe, the implication is a strategic imperative: harden civilian mobility systems. Defence capability is now inseparable from the energy profile, redundancy, and repairability of the rails, roads, and grids that would carry its forces.
Military mobility is civilian mobility
European defence mobility depends overwhelmingly on civilian infrastructure. Roads, railways, ports, tunnels, and logistics hubs enable reinforcement, deterrence, and crisis response. This dependency is explicitly recognised in the EU’s Military Mobility Action Plan, which identifies transport infrastructure as a critical enabler of collective defence [1, 3]. NATO’s Strategic Concept similarly emphasises resilience, mobility, and infrastructure readiness as core defence requirements [1].
Yet in practice, sustainability is too often siloed as a parallel, primarily environmental objective. This is a strategic misalignment. When designed for dual use, electrified rail freight corridors, climate-resilient bridges, and energy-independent logistics hubs become force multipliers that directly enhance deployment speed, interoperability, and operational reliability across borders.
Energy resilience as force protection
Fuel logistics have historically represented one of the most vulnerable elements of military operations. Convoys, depots, and refuelling nodes are exposed targets in both conventional and hybrid conflict. Electrification and energy efficiency reduce the scale, visibility, and vulnerability of these logistical footprints.
Decentralised energy generation, microgrids, and storage systems that support transport infrastructure enhance the continuity of movement during disruptions. Consequently, the European Defence Agency now explicitly frames energy resilience as a component of operational effectiveness rather than a purely environmental concern [5]. In effect, sustainable mobility functions as passive force protection, reducing exposure without additional military assets.
Investment scale and dual-use returns
The required investment is substantial, but the strategic logic is compelling: it funds a permanent shift from vulnerability to resilience. From a financial and industrial perspective, sustainable mobility infrastructure offers a rare alignment of defence utility, economic return, and political legitimacy. The European Commission estimates that completing and upgrading the TEN-T network will require approximately €500–550 billion in investment by 2030, with rail electrification and freight capacity among the largest cost components [6].
Rail electrification costs typically range between €1–3 million per kilometre, depending on terrain and existing infrastructure, while upgrading rail freight corridors for higher axle loads and military transport can require €2–5 million per kilometre [7]. This creates a powerful dual-use proposition: the same infrastructure investment serves two masters. For civilian planners, this investment delivers productivity gains, emissions reductions, and long-term asset value. For defence planners, the same outlay directly purchases enhanced military mobility, strategic redundancy, and a reduced logistical footprint.
For investors, development banks, and public-private partnerships, this dual-use logic strengthens the business case. Defence-relevant infrastructure financed through civilian frameworks reduces political friction, stabilises revenue streams, and allows defence planners to leverage civilian CAPEX rather than rely exclusively on constrained defence budgets.
Regional development and strategic depth
Sustainable mobility also reinforces territorial cohesion. Electrified regional rail, reliable secondary routes, and modern logistics access improve connectivity for rural and peripheral regions. From a defence perspective, this expands strategic depth, reduces reliance on a limited number of hubs, and enables distributed mobilisation.
In a crisis scenario, if a primary hub is compromised, access to secondary rail lines, regional depots, and resilient local infrastructure can prove decisive, allowing for the rerouting of reinforcements or the dispersal of critical supplies.
Pre-emptive defence planning
Defence planning that treats mobility as secondary remains reactive. Integrating sustainable mobility into defence capability assessments enables pre-emptive resilience, reducing vulnerabilities before they are exploited. This approach aligns with NATO’s emphasis on resilience and the EU’s evolving security doctrine.
As Criekemans’ geopolitical framework suggests, shaping dependencies in advance is more effective than managing crises after they emerge. Sustainable mobility restructures energy and transport dependencies in Europe’s favour, quietly, structurally, and durably.
Europe’s future defence posture will be shaped less by headline procurement figures than by the quiet infrastructure of resilience: the electrified rail corridors that move forces without fuel convoys, the smart grids that power logistics hubs independently, and the redundant regional networks that provide strategic depth. Sustainable mobility is not a climate accessory but the embedded architecture of a credible, enduring defence.
