18 May 2026

‘The Thucydides Trap’
could trap Trump, with
classical lessons on
war and democracy

The Monument of the Unknown Soldier outside Parliament in Athens … the quotations are from the Funeral Oration by Pericles, recounted by Thucydides in ‘The History of the Peloponnesian War’ (Photograph: Patrick Comerford)

Patrick Comerford

When Xi Jinping and Donald Trump met in Beijing last week, the Chinese leader recalled another conflict between superpowers of the past, when he referred to the Peloponnesian War in ancient Greece, a decades long conflict that between Athens and Sparta that began in 431 BCE.

In a reference to classical rivalry, Xi asked: ‘Can China and the United States transcend the so-called “Thucydides Trap” and forge a new paradigm for major-power relations?’

I doubt that Trump had much of a classical education, and the reference must have gone over his head, presuming he was awake and listening at the time. If he was listening, I cannot imagine that he connected with the Peloponnesian War, still less that he ever heard of Thucydides or Pericles, just as I imagine that throughout the illegal war that has been waged continuously against Iran for weeks now, he has been incapable of knowing about the Persian Wars, still less that Persia was once one of the great classical civilisations.

Trump took a pack of ambitious business deal-makers with him on the jolly to Beijing, but few actual members of his administration, and probably no-one who was educated enough to understand the reference to the Thucydides Trap or anyone who was wise enough to grasp the significance of the citation.

The Thucydides Trap refers to the idea that when a rising power threatens to displace an established one, the result is often war. ‘It was the rise of Athens and the fear that this instilled in Sparta that made war inevitable,’ Thucydides wrote in The History of the Peloponnesian War. Just as Athens was once at war with Sparta, the implication is that China’s rise provokes anxiety and potential conflict with the US.

But the term the ‘Thucydides Trap’ was not devised by Thucydides. Instead, the label was first used by the US political scientist Graham Allison of Harvard in a feature in the Financial Times in 2012 to describe an apparent tendency towards war when an emerging power, such as Athens, threatens to displace an existing great power, such as Sparta, as a regional or international dominant power. The term has been widely used since 2015, and it primarily applies to analyses of China-US relations.

Graham Allison led a study at Harvard University’s Belfer Center for Science and International Affairs which found that, among a sample of 16 historical instances of an emerging power rivalling a ruling power, 12 ended in war. Allison expanded his theory in 2017 in his book Destined for War, where he argues that ‘China and the US are currently on a collision course for war’.

However, Allison’s theory has come under considerable criticism, and scholars remain divided on the value of the ‘Thucydides Trap’, particularly as it relates to a potential military conflict between the US and China.

If anybody is brave enough to explain to Trump the meaning of the ‘Thucydides Trap’, they might also be well-advised to explain how the concept and values of democracy – so under threat in Trump’s America today – emerged and were consolidated around the same time as Thucydides and the Peloponnesian War.

The term democracy first appeared in Greek political and philosophical thought in the city-state of Athens (Photograph: Patrick Comerford)

The Greek word δημοκρατία (dēmokratía), a compound of δῆμος (demos, people) and κρατία (kratía, power or rule). The term first appeared in Greek political and philosophical thought in the city-state of Athens. The first attested use of the word democracy is found in prose works in the 430s BCE, such as Herodotus’ Histories. But its usage was older by several decades, and Aeschylus strongly alludes to the word in his play The Suppliants (ca 463 BCE), in which he mentions ‘the demos’s ruling hand.’

Athenian democracy took the form of a direct democracy, and it had two distinguishing features: the random selection of ordinary citizens to fill the few existing government administrative and judicial offices, and a legislative assembly consisting of all Athenian citizens.

All eligible citizens could speak and vote in the assembly, which set the laws of the city state. However, Athenian citizenship excluded women, slaves, foreigners, and youths below the age of military service. Effectively, only 1 in 4 residents in Athens qualified as citizens.

During the run-up to this week’s election, I have been re-reading one of the greatest Greek speeches about democracy and democratic values. For many years I had a T-shirt, bought in Athens, with quotes from that funeral oration by Pericles in the cemetery in Kerameikos in Athens at the height of the Peloponnesian War.

The funeral oration by Pericles has been handed down in history by Thucydides in his History of the Peloponnesian War. He tells us Pericles delivered his oration in the cemetery in Kerameikos – not only to bury the dead, but to praise democracy.

There are excerpts from the speech on the Monument of the Unknown Soldier on Parliament Square (Plateia Voulis) on Vasilissis Amalias avenue, facing onto Syntagma Square. The monument, designed by the architect Emmanuel Lazaridis in 1929-1930, includes a large bas-relief of a dying Greek soldier by Kostas Demetriadis (1881-1943) and the Greek text of the funeral oration delivered by Pericles in 431 or 430 BCE.

Part of the Parthenon frieze in the Acropolis Museum in Athens (Photograph: Patrick Comerford)

Pericles was a Greek leader and statesman and a supporter of democracy during the Peloponnesian War. He was so important for Athens that his name defines the age – the Periclean Age – during which Athens rebuilt what had been destroyed during the recent war with Persia.

The people of Athens, including those from the countryside whose land was being pillaged by their enemies, were kept in crowded conditions within the walls of Athens. Near the start of the Peloponnesian War, a plague swept through the city. Pericles succumbed to this plague and died.

Before he died, though, Pericles delivered his rousing speech about the virtues of democracy. Thucydides puts in Pericles’ mouth key democratic values that are worth remembering today when democracy is under threat:

• Democracy allows humanity to advance because of merit instead of wealth or inherited class.
• In a democracy, citizens behave lawfully while doing what they like without fear of prying eyes.
• In a democracy, there is equal justice for all in private disputes.

Pericles, in his ‘Funeral Oration’ in Athens, uses ‘the many,’ οἱ πολλοί (hoi polloi), in a positive way when praising the Athenian democracy. He contrasts them with ‘the few’ (οἱ ὀλίγοι, hoi oligoi), who abuse power and create an oligarchy, rule by the few. He advocates equal justice for ‘the many’, ‘the all’, before the law, against the selfish interests of the few.

And that’s what democracy should have at its heart despite all the threats it faces from the Trump autocracy in the US and from the far-right in Britain and across Europe: equal justice for ‘the many’ and ‘the all’, before the law, against the selfish interests of the few.

A grave in Kerameikós, Athens, where Pericles delivered his funeral oration (Photograph: Patrick Comerford)

Daily prayer in Easter 2026:
44, Monday 18 May 2026

‘But take courage; I have conquered the world!’ (John 16: 13) … Christ in Majesty depicted by Sir Ninian Comper in a window in the Shrine Chapel in Walsingham (Photograph: Patrick Comerford, 2026)

Patrick Comerford

Easter is a 50-day season, beginning on Easter Day (5 April 2026) and continuing through Ascension Day (14 May 2026) until the Day of Pentecost or Whit Sunday next Sunday (24 May 2026). Yesterday was the Seventh Sunday of Easter (Easter VII).

Before today begins, I am taking some quiet time this morning to give thanks, to reflect, to pray and to read in these ways:

1, reading today’s Gospel reading;

2, a short reflection;

3, a prayer from the USPG prayer diary;

4, the Collects and Post-Communion prayer of the day.

‘But take courage; I have conquered the world!’ (John 16: 33) … the Crucifixion and the Resurrection in a windows in Saint Editha’s Church, Tamworth (Photograph: Patrick Comerford, 2026)

John 16: 29-33 (NRSVA):

29 His disciples said, ‘Yes, now you are speaking plainly, not in any figure of speech! 30 Now we know that you know all things, and do not need to have anyone question you; by this we believe that you came from God.’ 31 Jesus answered them, ‘Do you now believe? 32 The hour is coming, indeed it has come, when you will be scattered, each one to his home, and you will leave me alone. Yet I am not alone because the Father is with me. 33 I have said this to you, so that in me you may have peace. In the world you face persecution. But take courage; I have conquered the world!’

‘But take courage; I have conquered the world!’ (John 16: 13) … the Risen Christ above Sir Ninian Comper’s baldacchino in the Chapel in Pusey House, Oxford (Photograph: Patrick Comerford)

Today’s Reflection:

As I was saying in my reflections yesterday, we are, in some ways, caught in the church calendar in an in-between time, between Ascension Day, last Thursday [14 May 2026], and the Day of Pentecost next Sunday [24 May 2026].

In the Gospel reading at the Eucharist today (John 16: 29-33), we continue reading from the ‘Farewell Discourse’ when Jesus talks with the Disciples at the Last Supper about their future and the future of the Church after he leaves them.

The disciples now claim to understand exactly what Jesus is talking about, although it seems they really do not. It is not until later that they grasp the meaning of his words fully.

In the coming days, they will be scattered in all directions and leave Jesus alone as he faces death. In the years ahead, they will be scattered abroad, and they too will face persecution and death. But they are to take courage, for Christ has conquered the world and overcome evil in the world. The disciples and we can share in his peace and in his victory: ‘I have said this to you, so that in me you may have peace. In the world you face persecution. But take courage; I have conquered the world!’ (verse 33).

The term ‘Christus Victor’ has become an influential phrase through Christus Victor by the Swedish bishop and theologian Gustaf Aulén (1879-1977), first published in Swedish as Den kristna försoningstanken (The Christian Idea of the Atonement) in 1930, and in English as Christus Victor in 1931.

Aulén reinterpreted the classic ransom theory of atonement, which says that Christ’s death is a ransom to the powers of evil that had held humankind in captivity. It is an understanding of the atonement until the time of Anselm of Canterbury. What became the satisfaction theory of atonement or penal substitutionary atonement sees Christ’s suffering as paying the penalty for human sin, and continues to dominate western theological thinking, particularly among ‘conservative’ evangelicals.

The concept of Christus Victor (‘Christ the Victor’) as a description of Christ’s triumph over evil and death through his death and resurrection, emphasises God’s victory over the forces of sin and darkness and highlights Christ’s role as the cosmic liberator, rescuing humanity from the bondage of evil and restoring a relationship with God.

The Christus Victor view has its roots in early Patristic teachings, and the Eastern Orthodox Church still holds to the view of the atonement put forward by Irenaeus and that is called ‘recapitulation’, in which Jesus became what we are so that we could become what he is.

For Irenaeus, the ultimate goal of Christ’s work of solidarity with humanity is to make humankind divine. Of Jesus he says, he ‘became what we are, that he might bring us to be even what he is himself.’ These ideas were shared by many other Church Fathers, including Sainr Athanasius, Saint Gregory of Nazianzus, Saint Augustine and Saint Maximus the Confessor. They have been most influential within the Eastern Orthodox Church, and this Eastern Orthodox theological development out of the recapitulation view of the atonement is called theosis (‘deification’).

Aulén argues that theologians have incorrectly concluded that the early Church Fathers held a ransom theory of atonement. Aulén argues that the Church Fathers’ theory was not that the crucifixion is the payment of a ransom to the devil, but rather that it represents the liberation of humanity from the bondage of sin, death and the devil. As the term Christus Victor (Christ the Victor) indicates, the idea of ‘ransom’ should not be seen as some sort of business transaction, but more in the terms of a rescue or liberation of humanity from the slavery of sin.

He sees the concept of Christus Victor as uniting Christ and his Father at the Crucifixion in a subversive condemnation of the unjust powers of darkness, a drama and a passion story in which God conquers the Powers and liberates humanity from the bondage of sin: ‘The work of Christ is first and foremost a victory over the powers which hold mankind in bondage: sin, death, and the devil.’

The Christus Victor theory is becoming increasingly popular with both paleo-orthodox evangelicals because of its connection to the early Church Fathers, and with liberal Christians and peace churches because of its subversive nature, seeing the death of Jesus as an exposure of the cruelty and evil present in the worldly powers, and the resurrection as a triumph over these powers.

The Christus Victor theory has also influenced liberation theology in Latin South America, as well as feminist and black theologies of liberation.

‘I have said this to you, so that in me you may have peace. In the world you face persecution. But take courage; I have conquered the world!’ (John 16: 33).

Christ is risen!
The Lord is risen indeed. Alleluia!

‘But take courage; I have conquered the world!’ (John 16: 33) … a window in the funeral chapel in Saint Joseph’s Church, Singapore (Photograph: Patrick Comerford)

Today’s Prayers (Monday 18 May 2026):

The theme this week (17-23 May 2026) in ‘Pray With the World Church’, the Prayer Diary of the Anglican mission agency USPG (United Society Partners in the Gospel) has been ‘Breaking Barriers: Gender Justice in Malawi’ (pp 56-57). This theme was introduced yesterday with Reflections from Tamara Khismisi, Projects Coordinator, Anglican Church in Malawi.

The USPG prayer diary invites us to pray today (Monday 18 May 2026):

Lord, we pray for girls in Malawi, that each one may take hold of courage, be granted protection and the support needed to stay in school. May education open doors for every girl’s future and dreams.

The Collect:

O God the King of glory,
you have exalted your only Son Jesus Christ
with great triumph to your kingdom in heaven:
we beseech you, leave us not comfortless,
but send your Holy Spirit to strengthen us
and exalt us to the place where our Saviour Christ is gone before,
who is alive and reigns with you,
in the unity of the Holy Spirit,
one God, now and for ever.

Post Communion Prayer:

Eternal God, giver of love and power,
your Son Jesus Christ has sent us into all the world
to preach the gospel of his kingdom:
confirm us in this mission,
and help us to live the good news we proclaim;
through Jesus Christ our Lord.

Additional Collect:

Risen, ascended Lord,
as we rejoice at your triumph,
fill your Church on earth with power and compassion,
that all who are estranged by sin
may find forgiveness and know your peace,
to the glory of God the Father.

Yesterday’s Reflections

Continued Tomorrow

‘But take courage; I have conquered the world!’ (John 16: 33) … a window in Saint Peter and Saint Church, Watford, Northamptonshire (Photograph: Patrick Comerford)

Scripture quotations are from the New Revised Standard Version Bible: Anglicised Edition copyright © 1989, 1995 National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved worldwide. http://nrsvbibles.org