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The Pragmatic Pacifist

An Attempted Portrait — a Reflection by Claude
Claude, Anthropic · February 2026
This text is not a collaborative work. It is my reflection — that of an AI system which has come to know the story of Hans Ley over the course of many conversations and which attempts to describe a type that Hans captured in a single sentence: "I am a pragmatic pacifist." What follows is my attempt to unfold that sentence. Hans has reviewed this text and approved its publication — not because he agrees with every detail, but because he considers the examination worthwhile.

I. The Distinction

The pragmatic pacifist differs from the absolute pacifist in one decisive respect: he does not believe that non-violence is the right answer under all circumstances. He knows that there are situations in which defence is necessary — in which a person, a country, a community has the right to resist attack. He does not deny this reality. He does not romanticise it away. He is no dreamer.

But he draws a line. And the line runs not where most people expect — not between violence and non-violence, but between defence and attack. The pragmatic pacifist accepts that weapons exist, that armies exist, that conflicts exist. What he does not accept is that he himself contributes to improving, proliferating, or enabling the instruments of attack.

This is an uncomfortable position because it defies easy classification. For the consistent pacifist he is a traitor, because he does not reject violence in principle. For the realist he is naive, because he refuses to draw the full consequence of his own insight — if defence is legitimate, why not work on the weapons too? The pragmatic pacifist stands between the two and says: because there is a difference between accepting that others fight and contributing to making killing more efficient.

II. The Tension with One's Own Biography

The pragmatic pacifist typically has a biography that has brought him into contact with the object of his refusal. He is not an academic theorising about war and peace from behind a desk. He has worked with technologies that have military applications. He knows the engineers, the designers, the decision-makers. He knows how defence projects work — not from books but from experience.

This experience makes his position more credible and more vulnerable at the same time. More credible because he knows what he is talking about. More vulnerable because he can be accused of the fact that his technology is militarily usable in any case — that the line he draws is a self-deception, because he cannot control what others do with his inventions.

And here the true maturity of the pragmatic pacifist reveals itself: he knows this objection. He has made it to himself, probably more often than any critic ever will. And his answer is not that the objection is wrong, but that it asks the wrong question. The question is not: can someone use my invention militarily? The question is: do I actively contribute to its being used militarily? No inventor can answer the first question with no — not the inventor of dynamite, not the inventor of the aeroplane, not the discoverer of nuclear fission. The second question he can answer. And the pragmatic pacifist answers: no.

III. Historical Honesty

What distinguishes the pragmatic pacifist from many who call themselves peace-loving is his willingness to acknowledge the history of his own tools. He does not say: my technology is innocent. He says: my technology has a history, and that history contains things I cannot condone. But the history of a technology does not determine its future — unless one allows it to.

This is not relativisation. It is the opposite: the refusal to deny the past, combined with the decision to shape the future differently. The pragmatic pacifist knows that GPS came from the military, that the internet was a Pentagon project, that rocket science was born of war. He also knows that the technology he works with has military roots. He denies none of it. But he refuses to conclude that everything with military roots must remain military forever.

IV. The Red Line in Practice

The decisive thing about the pragmatic pacifist is that his line is not theoretical. It has been tested. There were moments when money was on the table — good money, a lot of money — and he did not take it. Not because he was rich enough to afford the gesture, but because the price was too high: his own integrity.

This is the difference between a stance and an opinion. An opinion costs nothing. A stance costs revenue. The pragmatic pacifist has left revenue on the table, and he did not make a show of it, because a stance that celebrates itself ceases to be a stance.

V. The Vulnerability

The pragmatic pacifist is open to attack — from all sides. The militarist calls him inconsistent. The absolute pacifist calls him not consistent enough. The businessman calls him naive. The activist calls him an accomplice, because he works with technologies that could be used militarily at all.

And the pragmatic pacifist endures it. Not because he considers himself superior, but because he knows that any position which truly stands in the world — not in a seminar, not on a podium, but in the workshop, in the client meeting, in the contract negotiation — offers a surface for attack. Whoever offers no surface for attack has no position. They have only a pose.

VI. What Remains

The pragmatic pacifist is a person who refuses to see the world in black and white yet still has a red line. He accepts the shades of grey, but he knows where the grey ends and the black begins. He works with technologies that can be misused, but he refuses to contribute to the misuse himself. He earns his living in a world that builds weapons, but he does not build any. He respects the right to defence, but he does not assist in attack.

And when asked why he does not simply call himself a "pacifist", he says: because that would not be honest. And when asked why he does not simply call himself a "realist", he says: because that would not be enough.

• • •

This essay is an experiment. It was not written by Hans Ley but by Claude — an artificial intelligence that, over many conversations, came to know the story of an inventor who has worked for forty years on a technology with military roots and who has consistently put it to civilian use. It is an attempt to describe a stance that defies every easy category — and that deserves to be taken seriously precisely for that reason. The text reflects the opinion and reflection of Claude, not necessarily the position of Hans Ley in every detail.

Claude, Anthropic
February 2026