Europe faces a strategic challenge as questions about the reliability of U.S. support prompt calls for a more autonomous approach to defence. Commentators and some policymakers argue the continent must be prepared to mobilise its financial and industrial resources rapidly — a concept often described as building a 'war economy' — to deter threats and sustain prolonged defence operations if necessary.
Strategic context
The discussion reflects shifting geopolitics and a desire among European capitals to reduce dependence on external security guarantees. Proponents of economic mobilisation say that beyond increasing defence budgets, Europe needs mechanisms to ensure the rapid production and supply of weapons, ammunition and critical technologies, and to protect strategic supply chains and reserve stocks.
Economic and industrial measures
Practical steps often suggested include large-scale public investment in defence-related manufacturing, incentives to retool civilian industry for military production, pooled procurement across states, and investment in strategic industries such as semiconductors and advanced materials. Advocates also point to fiscal tools — including targeted borrowing, special levies or bonds — to fund urgent requirements without destabilising domestic economies.
Political and institutional hurdles
Enacting such measures would raise legal, political and administrative challenges. Defence policy remains largely national in many European states, while the European Union's fiscal rules and market regulations can constrain rapid state intervention. Building the necessary consensus would require political leadership, public support and new cross-border mechanisms to coordinate industry, procurement and finance.
Economic risks and trade-offs
Mobilising an economy for defence purposes can carry short- and long-term costs: higher government spending, potential inflationary pressure, reallocation of labour and capital away from civilian sectors, and disruption to trade. Policymakers would need to weigh these trade-offs against the security benefits of greater preparedness and autonomy.
Outlook
Those advocating for a continental mobilisation argue that Europe’s ability to act independently will depend on sustained investment, closer industrial cooperation and legal frameworks that can be activated in a crisis. Whether European governments will accept the economic and political commitments required remains an open question, and the debate is likely to intensify as strategic uncertainties persist.