Essay
Culture
War & peace
7 min read

Swords now, ploughshares later

There’s a moral case for investing in defence capabilities right now.

Tom Simpson is Associate Professor of Philosophy and Public Policy at the Blavatnik School of Government, University of Oxford.

A religious icon is propped on the side of a trench, a soldier can be seen further down the trench.
An icon of St Michael in a Ukrainian army trench.

It is two years since the Russian invasion of Ukraine, on 24 February 2022. We are still sleep-walking, with the British public and political class yet to grasp its implications. The risks of large-scale conflict have surged, and the British military is inadequately prepared for the operations it may soon be called on for. One day, swords will be turned into plowshares. But right now, in this imperfect world, we need more swords. Even if not widely enough, some have realised that the global order has changed. But fewer still are willing to act on that realisation.  

The Russian assault in February 2022 was designed to shock. Repeating the plan which the Soviet Union had used in Afghanistan in December 1979, armoured columns advanced on the capital on multiple axes, preceded by an aviation assault into an airport just outside the main capital, intended to allow invading forces to ‘decapitate’ the government. The 2022 attack was also accompanied by strikes on key targets in Kyiv itself, with Russia mimicking the ‘shock and awe’ campaign with which coalition forces had initiated the invasion of Iraq in 2003.  

The international situation has been parallel, with an immediate shock, galvanising intensive and often heroic action—but the resolve for which has withered with time. Some moments of demonstrated resolve among the public during the early months stand out in my memory. The students in Oxford who were fundraising not just for blankets for refugees, but for body armour, night-vision goggles and, if I remember rightly, even weapons. The stranger who bought a decrepit caravan from me for scrap saying, quietly and undemonstratively, that she would not buy fuel from Shell because it was blood oil. And, the 12-foot-tall statue in Oxford’s Broad Street of a Ukrainian soldier expressing the city’s solidarity.  

This was echoed at the national level. In a welcome act of leadership, Boris Johnson, then Prime Minister, declared that Putin “must fail and must be seen to fail”. This gave the necessary direction for a series of forward-leaning policies, both economic and military, to support Ukraine.  

The shock was short-lived, however, and in its place are concerning questions about both public and political resolve. The underlying issue is the significance of the Russian invasion of Ukraine. While the immediate consequences of this conflict are felt by Ukrainians, it matters more widely—to both the British and the global public. Realising these consequences, and then taking the appropriate action to address them, is now urgent. That action involves serious investment in defence industries, defence capability, and the military.  

The lights on the dashboard of global security are all flashing—some amber, and some red. 

The Russian invasion of Ukraine matters more widely in at least the following four ways. 

First, it has incurred immediate costs on consumers globally. This sounds bland but is not. Soaring energy bills have cost lives, with the Economist estimating that the war indirectly killed more people in Europe in winter 2022 than Covid-19 did; so too do soaring food costs in countries which desperately need a steady, cheap supply of grain.  

Second, the current course of the conflict in Ukraine has dramatically raised the risk of a confrontation between NATO and Russia, which may include either or both of conventional or hybrid conflict. Russia has not succeeded in turning Kyiv into a satellite state. But, unless NATO dramatically increases its supply of materiel, including high-end capabilities, the most likely outcome of the war is that Russia will successfully ‘freeze’ the conflict while controlling approximately a fifth of Ukraine, including the most economically productive part of the country in the East. Such success increases the likelihood of a revanchist Putin, seeking to establish Russian control over its claimed ‘historic’ borders and having put his economy on a war footing, attacking perhaps the Baltic states. Or Russia may simply seek to disrupt NATO countries in forms of conflict that fall short of conventional war, but risk escalation, as witness the recent Estonian arrests of ten people alleged to be part of a Russian destabilisation operation. The collective self-defence pact embodied in NATO’s Article 5 means that UK forces will be involved in any response to such aggression. 

Third, the current inability for the US and Europe to act decisively, due to domestic political irresolution and polarisation, in the face of a clearly deteriorating security environment, emboldens potential adversaries. This is evident daily at the moment, with Republican politicians refusing to approve the $60 billion support package for Ukraine proposed by the Biden administration; as a result, the Ukrainian army has just withdrawn from Avdiivka, because it lacks the artillery shells to defend it. In a post-2016 timeline, and from an external perspective, the West now looks decadent.  

Fourth, that Russia is likely to succeed in its war aims (unless something changes on the battlefield) further undermines the norms of non-aggression which are central to our currentrules-based international order. The domestic political trajectories of Russia, China, and Iran are not presently encouraging. All have stated goals which would see change in who controls relevant territories, and none rule out the use of force in achieving their goals.  

The Russian invasion of Ukraine in February 2022, then, is an inflection point. The lights on the dashboard of global security are all flashing—some amber, and some red.  

But Javelins do not descend ex nihilo from the clouds: they need to be manufactured by advanced industries.  

In the face of such a deteriorating security environment, the urgent task for a responsible government is to ensure that it has the required military capability. This capability must be at minimum sufficient to defend its own citizens. It must also be sufficient to protect more widely those whom it has undertaken treaty commitments to defend. And, as a contribution to the wider public good, it is desirable that that capability should be sufficient to defend other innocent parties globally, subject to appropriate authorisation. Central to this capability is having a defence industry which will develop and manufacture the arms required.  

The defence industry has frequently attracted criticism and controversy, with the most damaging charge being that it sells weapons to authoritarian regimes in corrupt deals. Exporting arms to regimes that will use them repressively, through corrupt contracts, is plainly wrong. But responding to this criticism does not require banning or otherwise abolishing the defence industry. Rather, the correct response is to reform it and then regulate it effectively, on the grounds that if war itself can sometimes be just, then the production of the tools required for war must itself be just.  

If the state is, as St Paul had it, commissioned to punish the wrongdoer, ‘not bearing the sword in vain’, someone must make the swords. 

The Russian invasion of Ukraine in 2022 was a paradigm of wrongful aggression; if war is ever justified as, I think, an imperfect world forces us to accept, it is in such circumstances. Those who would contest such aggression, in defence of innocent lives and sovereign states, need the weapons to be able to do so, and they need the best weapons that are available. One of the immediate actions that Ben Wallace, then UK Secretary of State for Defence, took in response to the invasion was to surge Britain’s stocks of man-portable anti-tank weapons to Ukraine. One of these, the Javelin weapon, literally gained iconic status, in the meme of ‘St Javelin’, styled as an Orthodox saint. But Javelins do not descend ex nihilo from the clouds: they need to be manufactured by advanced industries.  

The defence industry, then, may certainly play a valuable role in a country’s economy. But more than that, in a world of predatory and repressive states, and violent non-state actors, it is a moral necessity. Isaiah foresaw, prophetically, a time when swords will be turned into ploughshares and spears into pruning hooks. But this side of that new reality, we need states that protect the innocent, and without a defence industry to equip the state to do so, the innocent lie vulnerable. If the state is, as St Paul had it, commissioned to punish the wrongdoer, ‘not bearing the sword in vain’, someone must make the swords. The peace dividend at the end of the US-Soviet Cold War has been spent, and we are in ‘the foothills’ of a new one, as the late Henry Kissinger described it. Ploughshares later; it must be swords now.  

How long have we got? It is a basic principle of military planning that, while you should structure your own operations around the enemy’s most likely course of action, you should also, and crucially, have contingencies for the enemy’s worst-case course of action. That worst-case may be with us sooner that we think. In the lead-up to the recent Munich Security Conference, the Estonian intelligence chief estimated that Russia is preparing for confrontation with the West ‘within the next decade’; the chair of Germany’s Bundestag defence committee indicated five to eight years; and the Danish defence minister suggested three to five years.  

With procurement timelines for advanced equipment—such as main battle tanks, frigates, and next generation fighter aircraft—typically taking over a decade, the urgent priority is for defence investment now. The UK’s Armed Forces are in a parlous state, as the recent cross-party report by the House of Commons Defence Committee makes clear. This investment in defence will not be cheap, and the difficult political task is deciding what spending to cut to allow for this uplift. But this debate cannot wait, and politicians must lead the country now in the required mind-set shift. Poland is the only NATO country to have convincingly demonstrated that it understands the times we live in, by investing seriously in its army. The UK government certainly wills the end, of ensuring the country’s security. The present question is whether it wills the means.   

The St Javelin icon meme

A cartoon female saint cradles a portable missile launcher against the backdrop of a Ukrainian flag.
Article
Comment
Ethics
Politics
War & peace
5 min read

We must invest in defence, fast - it’s the only moral thing to do

The responsible use of force today precludes pacifism

Emerson Csorba works in deep tech, following experience in geopolitics and energy.

Amid a bombed alley, a victim is helped to walk by a rescue worker
Aftermath of a Russian drone attack, Odesa, Ukraine.
Dsns.gov.ua, CC BY 4.0, via Wikimedia Commons.

In May 2016, I was hiking the Southwest Coast Path in a group, trudging through dense forest between Lyme Regis and Weymouth, when a distinctly unsettling event occurred. As we moved along a narrow trail, a buzzing sound began—we assumed we had disturbed a bee’s nest. We quickened my pace, but the buzzing continued. Eventually, we emerged from the woods and looked up. The sound had not come from bees, but from a drone that had been following us.

I will never forget that sound; the eerie sense of something pursuing you, but unseen. In a recent BBC special on the war in Ukraine, a journalist documents the now-pervasive use of drones, the journalist and Ukrainian soldiers hiding under the cover of forest as a Russian drone scans the area, before escaping to their car in which an AI voice says ‘Detection: multiple drones, multiple pilots, high signal strength’ as they journey overground. This is the new era of covert warfare, where the enemy strikes without being easily identified. You hear the hum, but the source is elusive.

In the coming years, this kind of psychological warfare will make its way into Western cities. Terrorist attacks will shift from in-person confrontations—like the Novichok poisonings in Salisbury—towards remote, anonymous assaults: drones drifting from overseas into coastal cities to target civilians, or swarms carrying out mass attacks in dense downtown cores. The aim will be psychological trauma at scale. Civilians will grow hesitant to leave home, hyper-sensitive to the buzz of anonymous drones in their own areas. Iran recently declared that no US, British, or French base is safe from retaliation in the emerging Israel–Iran war. It is not difficult to imagine Western cities soon being viewed as legitimate targets.

We are entering a time of intensified conflict, with national security becoming the dominant framework for policymaking. The watchword of UK government policy is ‘security,’ and—writing now from Montréal—the recent Canadian election was framed around which party and leader could best protect Canadians from external threat. In this context, even domains once governed by cooperation are transformed into zero-sum contests, because national security framing by its nature shifts focus from reciprocity to limitation of the other. 

Free trade, for example - fundamentally the mutually beneficial exchange of goods and services as part of the creation of value - becomes, in a security-focused world, a question of containment. Trade, in a security-focused world, is turned on its head, free trade becoming trade wars. Fairness (in which the pie is grown and shared across multiple people) is replaced by interest, whether the interest of countries or communities and individuals within them seeking to protect themselves. As US–China competition escalates, we can expect human relations—among both states and citizens—to become even more zero-sum. 

In such an environment, do morals still matter? When the enemy grows more ruthless and more innovative in an era of national security, must we match them in kind? Or is it still possible to uphold principles while defending ourselves?

Restraint and humility are still critical virtues—but must not be mistaken for weakness.

In a recent Times column, Juliet Samuel suggested that gestures of non-aggression—such as Finland’s 2015 destruction of its one million landmine stockpile—now appear dangerously naïve. Ukraine, for its part, has rightly disregarded the Ottawa and Oslo (banning cluster munitions) conventions. Its survival depends on ingenuity, rapid technological development (for instance through the work of funds such as D3), and collaboration with its allies to prototype and deploy advanced systems.

Reinhold Niebuhr, in Moral Man and Immoral Society, contends that to be moral, one must possess the capacity for force—‘power must be challenged by power.’ That power, however, must be exercised with responsibility, humility, and moral purpose. Nigel Biggar, my former doctoral supervisor and a key figure in the Niebuhr tradition of Christian realism, argues in In Defence of War that war can be justified on balance when it meets the criteria of jus ad bellum: just cause, legitimate authority, right intention, proportionality, and reasonable prospect of success. 

War, in this reading, can express a ‘kind harshness’—a form of judgment exercised in defence of victims. Like Niebuhr, Biggar grounds his argument in Augustinian realism: the world is fundamentally good, yet broken. Because evil persists, the moral use of force becomes necessary to uphold what is right. I believe this to be true, and directly applicable to the national security-focused world in which we find ourselves. 

What does this mean then for Western countries as national security reasserts itself as the central organising principle of governance?

It means significant and urgent investment in defence and deep technology, including for instance emerging capabilities like cognitive warfare and neuroadaptive systems (wearables that enhance soldiers’ performance in live combat), counter-drone systems for urban, rural, and maritime environments, and next-generation electronic warfare and geospatial intelligence.

If drone attacks intensify at sea—such as those carried out by the Houthis to disrupt global shipping routes—counter-drone systems will be vital to ensure safe passage. In a world of manipulated narratives and disinformation, geospatial intelligence will serve as a source of truth, helping establish what is actually happening on the ground. And as agentic AI grows increasingly capable of manipulating users—through sycophancy, persuasion, and other techniques—oversight technologies like Yoshua Bengio’s new LawZero project will be essential for maintaining objectivity and integrity.

The responsible use of force today precludes pacifism, averting violence altogether. It means maintaining—and advancing—the capability for overwhelming force, so it is ready if needed. Morality in an era of national security demands investment in defence technologies at speed, to stay several steps ahead of adversaries. A ‘whole-of-society’ approach, as recommended in the recent UK Strategic Defence Review, means preparing citizens with such a mindset. Restraint and humility are still critical virtues—but must not be mistaken for weakness. Western nations must be prepared to act swiftly, decisively, and with the deterrent power that peace requires.

This is the world we are entering: one in which governments and civilians alike must be ready for unexpected threats. The hum of a drone overhead is more than a sound—it is instead a warning, reminding not only Ukrainians but those currently in peaceful situations, to prepare ourselves for potential conflicts to come. The appropriate response is not retreat, but the responsible and moral exercise of power: a necessary duty if we are to preserve peace, freedom, and justice in a world increasingly intent on contesting them.

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