Dual-Use Civilian Infrastructure: Europe's Achilles' Heel
· By Archivo Bélico editorial team
Bridges that cannot take tanks, narrow tunnels and border bureaucracy: why military mobility is Europe's logistical weak point and what the EU and NATO are doing.
An army is only as fast as the roads, bridges and railways it moves on. Europe discovered, especially after Russia's annexation of Crimea in 2014, an uncomfortable problem: its civilian infrastructure, designed for commercial traffic rather than war, was not ready to move tank divisions from west to east. Analysts call this the military mobility problem, and it has become one of the EU's and NATO's logistical priorities.
The historical precedent: the Autobahn
The idea that civilian infrastructure should also serve military ends is not new. Germany's autobahns of the 1930s were conceived, among other arguments, with the rapid movement of troops and materiel in mind, and during the Second World War some stretches were even used as improvised airstrips. The lesson they left is twofold: a well-designed road network multiplies a country's capacity for manoeuvre, but it also shows that military logistics begins long before the war, at the civil engineer's desk.
Other countries applied the same logic: the United States' interstate highway system, championed by Eisenhower in 1956, was officially justified partly on national-defence grounds, after witnessing the autobahns' effect on German mobility.
Europe's problem: built for lorries, not tanks
European civilian infrastructure is sized for legal commercial traffic: 40-tonne lorries. A modern main battle tank weighs between 60 and 70 tonnes, and a heavy transporter with its load can exceed 80. The consequences, documented by official reports and the European Court of Auditors, are concrete:
- Bridges whose strength cannot bear heavy transporters, forcing detours of hundreds of kilometres.
- Tunnels and level crossings too narrow or too low for certain convoys and military rail wagons.
- Railways with insufficient loading gauges and a shortage of flatbed wagons for armoured vehicles.
- Border formalities and national permits that, until recently, could delay an allied unit's crossing by weeks.
NATO exercises in eastern Europe have put figures to these frictions: units arriving days late because of an uncertified bridge or a dangerous-goods transport permit.
The response: military mobility as European policy
In 2017 the EU launched permanent structured cooperation (PESCO) and, within it, a military mobility project the media nicknamed 'military Schengen': the idea that allied troops should cross Europe as smoothly as goods do. In parallel, the EU created a specific budget to adapt dual-use infrastructure — reinforcing bridges, widening rail gauges, adapting airports and ports — within the Connecting Europe Facility, with 1.69 billion euros allocated for 2021-2027.
NATO, for its part, reactivated in 2018 the JSEC logistics command in Ulm (Germany), dedicated precisely to coordinating the rapid movement of forces across Europe, and has tightened readiness targets demanding concrete deployment times. The war in Ukraine accelerated the whole process: the European Commission presented a Military Mobility Action Plan 2.0 in 2022, and the eastern-flank countries have invested in their networks with new urgency.
Why it matters: deterrence is logistics too
Deterrence depends not only on how many tanks an army has, but on how long they take to arrive where they are needed. If reinforcing a Baltic ally takes weeks because of bridges and paperwork, the promise of collective defence is worth less. That is why strategists insist that military mobility is deterrence by other means: every reinforced bridge and every eliminated formality shortens the adversary's margin of surprise. On the general importance of logistics, see our article on historical cases of cut supply lines.
Frequently asked questions
- What is 'military Schengen'?
- It is the informal name of the European military mobility project: reducing border formalities and adapting infrastructure so allied forces move across the EU as smoothly as goods in the Schengen area.
- Why can't European bridges take battle tanks?
- Because they were sized for legal civilian traffic (lorries of about 40 tonnes), while a modern tank weighs 60-70 tonnes and its heavy transporter even more. Many bridges require reinforcement or detours.
- Was the Autobahn built for military use?
- It was one of the arguments behind its conception in the 1930s, and some stretches were used as airstrips during the war, although its main function was civilian and propagandistic. The lesson of its military value later influenced the US interstate highways.
- Who pays for adapting the infrastructure?
- The EU co-finances dual-use projects through the Connecting Europe Facility (1.69 billion euros for 2021-2027), and member states provide the rest within their defence and infrastructure budgets.
Sources and references
Sources and references
- European Court of Auditors — report on military mobility in the EU (2021).
- European Commission — Military Mobility Action Plan and CEF Transport (dual-use budget).
- NATO — information on the Joint Support and Enabling Command (JSEC, Ulm).
- PESCO — Military Mobility project.
- IISS / RUSI — analysis of logistics and eastern-flank reinforcement.
- Encyclopaedia Britannica — 'Autobahn' and 'Interstate Highway System'.