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Just War and Just Peace

As the Ukraine War passes another milestone, can any war be considered just? Christine Schliesser explores Just War theory and a possible path to Just Peace.

Christine Schliesser

Christine Schliesser lectures in Theology and Ethics at Zurich University, and is a scientific collaborator with the Center for Faith & Society at Fribourg University.

Civilian evacuation across Irpin River during the Ukraine War.
Civilian evacuation across Irpin River during the Ukraine War.
Yan Boechat/VOA via Wikimedia Commons.

Will Germany deliver Leopard 2 tanks to Ukraine? No? Yes? When? Media discussion of the war that the Russian Federation started against Ukraine in 2014 and that entered a new stage one year ago, currently centres on questions of weaponry. Who else will send tanks? And what about fighter aircrafts? No? Yes? When?  

In classical military ethics, which has long been dominated by the so called Just War Theory, these questions fall under ius in bello, the right conduct in war. This also includes discussions on proportionality, military necessity and the differentiation between combatants and non-combatants. 

Just War Theory has a long tradition in Christian thought. Church Father Ambrose argued that whoever does not ward off injustice from his fellow man (or woman for that matter) when he can, is as guilty as he who commits it. Ambrose’s student, Augustine, then developed this thought in more detail as he laid the foundations for what could be called a bellum iustum, a just war.  

Even before going to war, the criteria of the ius ad bellum, the right to go to war, must be satisfied. These include, for instance, a just cause, legitimate authority, prospect of success, right intention and last resort. We encounter these criteria again in slightly modified form in our modern international law. In view of these guidelines, of Russia’s breach of international law, and of Ukraine’s right to self-defence, the on-going war in Ukraine clearly seems to be a just war. Or is it?   

Nothing holy or just 

Two points need to be made in this discussion. Firstly, there are no just or holy wars. Period. Or as 150 churches, after the horrors of the Second World War, put it in Amsterdam in 1948: ‘War is contrary to the will of God.’ Wars are always an evil and an expression of the failure of human beings to strive for peace. This also holds true for the war in Ukraine. And this means that we need a new dimension in the debate, namely guilt.  

Every action – and inaction – here involves guilt. As the German pastor Dietrich Bonhoeffer, who was killed by the Nazis for his engagement in a plot against Hitler, put it:  

‘everyone who acts responsibly becomes guilty’.  

And even if we become guilty for the sake of the other person, our guilt remains just the same. Yet, as Bonhoeffer concludes, we trust in the grace of God, who calls us to responsible action. , Bonhoeffer’s ideas have been considered dangerous and easily misused to justify any crime, as forgiveness is always available.  Nevertheless, we must acknowledge the reality of guilt that pervades any war, including the war in Ukraine.  

Just Peace 

Secondly, recent years have seen a new kid on the block: Just Peace Theory. While Just War Theory looks at a conflict from the perspective of violence, Just Peace Theory puts the focus on peace. This includes adding a third set of criteria. Ius post bellum looks at justice after a war. We know that after a conflict is before a conflict. We therefore need to pay more attention to what happens after the weapons finally fall silent.  

Here, the experiences of truth and reconciliation processes worldwide can help. Both dimensions belong inseparably together and both already begin during a conflict, not just after it. Truth, for example, requires the documentation of war crimes committed by all parties to ensure the prosecution of war criminals later on. And reconciliation is the conditio sine qua non for sustainable peace.  

Russia’s war against Ukraine and its threats against NATO and Western countries demonstrate, not least that after the end of the Cold War, opportunities for genuine and sustainable reconciliation were missed as latent hatred, prejudices and stereotypes were allowed to linger.  

Just Peace Theory emphasizes that building peace is an art and a craft. It requires specific skills, training and preparation. It also requires virtues of grace, persistence and forgiveness, Countless documented examples world-wide supply empirical proof that these methods actually work. Perhaps it is worth devoting some of the $2,113 billion (2021) of global annual military expenditure for training non-military approaches to address conflict resolution? To learn how to build peace as much as how to wage war? No? Yes? When?  

Pathways to Peace

One such initiative is Pathways to Peace. Aiming at peace, justice and reconciliation in times of war, this initiative is currently being developed through the Conference of European Churches, a group of some 120 member churches in 38 countries. With their long-term involvement and intimate knowledge at the grassroot level, faith actors in civil society seem uniquely positioned to connect people, heal relationships, offer a new social imaginary and facilitate practical help.  

The objectives of Pathways to Peace include among others to facilitate safe spaces for honest exchange between Ukrainian and Russian church leaders, to develop a network of church leaders and other civil society leaders for exchange on the preparation of peace or to bring together European youth, in particular Ukrainian and Russian young refugees. 

The immense potential of faith actors in transforming conflict and building sustainable peace seems to have gone largely unnoticed in the public sphere. Given the prominence of faith in this conflict, it is about time that all relevant actors in our societies, including faith-based initiatives, joined forces to counter this major crisis of our time.  

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Cynical twists that make wars unjust

The dodgy deals and human shields of a past war still disgust George Pitcher, who questions if just war criteria remain fit for today.

George Pitcher

George is a visiting fellow at the London School of Economics and an Anglican priest.

A destroyed airliner lies on the apron of a war-torn airport.
A destroyed British Airways plane at Kuwait airport in 1991.
USN, Public domain, via Wikimedia Commons.

In the very early hours of Thursday 17th January 1991, I was despatched as a young journalist on The Observer to the dealing rooms of Smith New Court, a worthy firm of stockbrokers in the City of London, to witness how the markets reacted to the outbreak of the first Gulf War against Saddam Hussein’s Iraqi invasion of Kuwait. 

A yellowing newspaper cutting shows I reported that, a little before 8am, Smith New Court’s chairman, Sir Michael Richardson watched prime minister John Major declare war on a TV monitor and then said:  

“I had a nudge on the political line a little early, so I’ve been up all night. We have to keep things tightly under control.” 

He did indeed say those words, but it’s not the whole story. Walking up to him on the dealing floor, I asked how we were positioned in the markets for war. Mistaking me for one of his dealers, my notes showed that he replied:

"Number 10 called me last night, so we could adjust our positions in oil. So we should be okay.” 

It was a magnificent example of insider-dealing, in collusion with the government. A few minutes later a Smith New Court PR woman ran up to me to say that Sir Michael hadn’t meant that and even if he’d said it, I was a guest on the floor and everything said there was confidential. 

Kuwait was always about oil. This was an insight into where the UK’s political and financial priorities lay. Richardson had been at the heart of Margaret Thatcher’s Government as an unofficial adviser to the Treasury. This was his dividend. Eventually he was to lose his dealing licence for making unsafe loans to an American entrepreneur. He died in 2003. 

I’m reminded of this story today, Thursday 21st September, the United Nations’ International Day of Peace, because it reminds me of where governments’ priorities really lie, because these are the priorities that invariably threaten peace.  

And it matters because over 300 people on board were subjected to unimaginable suffering as “human-shield” hostages.

I’m also reminded that only last week passengers and crew aboard British Airways Flight 149 are preparing legal action against the government for being treated as “disposal collateral”, as the aircraft was used to plant special forces in Kuwait in the early hours of 2nd August 1990, as Iraqi forces crossed the border. 

Their claim is that the UK government and BA have “concealed and denied the truth for more than 30 years". The issue has come to a head now because documents released in 2021 show that the Foreign Office was warned of the invasion an hour before the plane touched down.  

And it matters because over 300 people on board were subjected to unimaginable suffering as “human-shield” hostages over the following five months. 

These stories have a common thread. Smith New Court, with the government’s help, was about money. The government, with BA’s help, was about protecting its Kuwait oil reserves. It’ll be proven that the lives of innocent people mattered much less against these priorities, if they win their case. 

That should make us very angry indeed. The sheer hypocrisy of rhetoric that spoke of defending the people of Kuwait is one thing. The idea that they could simultaneously serve God and Mammon is quite another. 

But it may be that just-war criteria have failed to keep up with the motivations of global late-capitalism. 

The principles of the “just war” have enjoyed a long tradition in Christian thought. The foundations that were laid in the classical Greek school by the likes of Aristotle were built upon to provide a moral architecture for armed conflict by the Italian Dominican friar and philosopher Thomas Aquinas in the thirteenth century. 

The just war tradition distils into two sets of criteria:  jus ad bellum (the right to go to war) and jus in bello (right conduct within war). The former set contains consideration of “just cause” and rules out war as a simple means of recapturing things or punishing people who have done wrong. The second includes matters of proportionality. By these clauses, combatants must ensure that harm caused to civilians or civilian property is not excessive in relation to military advantages gained.  

In the second war with Iraq, an adventure that prime minister Tony Blair started with US president George W Bush in 2003, neither of these criteria arguably were met, along with others besides. To paraphrase Wilde, they knew the price of oil and values counted for nothing. 

But it may be that just-war criteria have failed to keep up with the motivations of global late-capitalism. Economic dependence on oil is now more usually something we hear about in the context of the green movement’s war on the climate crisis. Dependence on oil actually has a firmer grip on political control of the cost of living in western democracies. 

These are not issues that occurred to hot-shot stockbrokers playing war games in 1991, nor to a privatised national airline allegedly being requisitioned for military purposes. But it’s surely not too much to hope that the senior actors in either instance should have summoned at least a religious folk memory to say: No, this isn’t right.  

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