How a lot wouldn’t it actually value the European Union to defend itself towards aggression? Within the speedy time period, that query, in fact makes us consider Russia, however we are able to not exclude a number of different prospects, together with the potential must defend territory – say, Greenland – from a former ally.
How a lot wouldn’t it value to defend Europe if we added in the necessity to defend the UK, Norway, Turkey and even Canada – and some other Nato nation keen to pool assets to fill the void left by US disengagement? Is there an clever approach to keep away from painful trade-offs between this and, say, spending on healthcare or training?
It seems to be like EU establishments are lastly “doing one thing” (as former Italian prime minister Mario Draghi lately requested them to do). They might even break the taboo of elevating frequent debt with a purpose to improve spending on joint defence procurements.
But, it additionally appears they’re about to launch a plan that might change the very nature of the European Union with out even tackling the query of its monetary feasibility. The reply to how joint defence may be paid for actually doesn’t come from the plan that the European Fee has unveiled on “rearming Europe”. On the final line of that assertion, a determine of €800 billion is posited, however it’s not clear how the sum was calculated and fairly a couple of vital {qualifications} are lacking.
The controversy over how a lot it prices to stop a warfare (which is a really completely different notion from combating one), has been dominated by what I’d name “the fallacy of the proportion of GDP”.
In 2014 (on the time of Russia’s annexation of Crimea), the leaders of Nato nations agreed to spend a minimum of 2% of their GDP on defence (specifying that retirement advantages to veterans must be included). But by 2022, the general ratio for Nato defence spending had, in truth, shrunk from 2.58% of GDP to 2.51% (due to the sharp discount within the share of GDP contributed by the US). And, in line with the European Defence Agency, the EU is spending round €279 billion, which is 1.6% of its GDP. Most definitely, the €800 billion determine that European Fee president Ursula von der Leyen was citing in her communique is just an estimate of how a lot it will yield to extend that spending as much as 2% of GDP for every of the subsequent ten years.
Politicians generally must make back-of-the-envelope calculations, however I’d argue that right here it factors to a much wider drawback. Europe hasn’t but bothered to attempt to develop a technique for a way this extra cash could be spent. A correct technique ought to, in truth, begin from three key technical issues. To which I’d add a no-less vital political one.
1. Spending sensible is healthier than spending massive
Applied sciences (together with AI) are radically altering the equation. The conflicts in Ukraine and Gaza show that low cost drones are actually the important thing to trendy warfare – not tremendous costly F35 strike fighters. Why spend billions designing, constructing and sustaining 2,500 F35s when a drone the scale of a cell phone can cross enemy traces unnoticed?
In a world by which information is a weapon, and a large-scale assault may be mounted by taking remote control of pagers, what generals name “supremacy” doesn’t essentially belong to the largest spender.
EPA-EFE/Giuseppe Lami
Israel’s navy funds is one-third that of Saudi Arabia, but it dominates the Center East as a result of its perpetual state of battle forces innovation. Russia spends less than half of the 27 EU member states, nevertheless it has way more expertise in hacking different nations’ infrastructures. The EU spends as a lot as China, however China invests greater than twice in analysis and growth and is the world’s largest exporter of drones consequently.
2. Spending collectively is healthier worth
The European parliament estimates that merging the 27 member states’ defence budgets would liberate €56 billion (which is a 3rd of what the defence bonds proposed by the Fee would elevate).
But the development is to spend extra alone than collectively. Based on the European Defence Company, the bloc has greater than doubled its expenditure on new digital applied sciences; but the proportion of that going into joint initiatives between member states fell from 11% earlier than Ukraine’s invasion to six.5% in 2023.

Imaginative and prescient, CC BY-ND
3. Homegrown all of a sudden seems to be safer
Any frequent defence would additionally need to depend on “shopping for European” as a lot as doable. The F35 fighter jet is one other good instance right here. Denmark agreed to purchase 27 of them (to the tune of round €3 billion) with an concept to station 4 of them in Greenland. The issue is that, in line with the previous president of the Munich safety convention Wolfgang Ischinger, they can’t even take off if remotely disabled by the US. Once more, Europe just isn’t strolling the stroll. The share of kit that European nations import from the US has massively increased within the final 5 years.
A brand new period for the union
Defence might be an important concern when speaking concerning the Europe of the long run. It offers a concrete alternative to fill a technological hole out of the need to take action. Spending on defence within the pursuits of self-protection might have longer-term advantages past the navy area. It has been typically the case that military research leads to major breakthroughs that may utilized in public companies. Who is aware of. Navy improvements with drone or AI expertise on right this moment’s battlefields may result in useful makes use of in peace time.
The historic alternative to remodel the way in which we defend ourselves might even power a radical rethinking of not simply the EU treaties however of the character of the EU. The thought of the “coalition of the keen” might, certainly, push Europe in the direction of an alliance which doesn’t embody a few of its members (corresponding to Hungary) however does embody non-members just like the UK, Norway and even Turkey. New preparations will have to be pragmatically versatile.

EPA/Christophe Petit Tesson
Europeans want way more technique, whereas we now largely have rhetorical bulletins with little substance. And we’d like way more democracy. In spite of everything, defence is among the defining dimensions of the state. Having a standard defence coverage in Europe may make individuals really feel extra like European residents. However that can’t occur with out partaking residents in an clever debate.