War and Peace

Is it ever morally justifiable to kill in war? Lilian Alweiss is an expert of Kantian philosophy. In this talk, she will examine the moral questions around conflict and peace.

Any philosopher who tries to write about war faces a conundrum. For war seems to justify what the 5th commandment forbids: to kill another human being. While it is agreed that it is wrong to kill, killing an enemy in warfare often seems morally justifiable.

This is a position that so-called Just War theorists advance. They argue that there are certain conditions under which States are justified to resort to war. These can be for example, self-defence, the protection of national interests or the defence of justice and democracy.

This lecture questions this position by drawing on Kant’s Seminal work Toward Perpetual Peace. The problem is that just war theorists assume that force can bring about justice. But might is not right. Wars are essentially barbaric and cannot eliminate evil or deter future hostilities.

This lecture seeks to show that the intrinsic immorality of war generates its own distinctive set of moral demands. Once we realise that disputes cannot be resolved through force, we need recognise that there is only one alternative: we have a duty to understand war in terms of its opposite: perpetual peace.

Date | Thursday, 20th February 2025

Time | 7.00pm - 8.30pm

Location | The Synge Theatre, The Arts Building, Trinity College Dublin

Professor Lilian Alweiss

Lilian is an Associate Professor of Philosophy at Trinity College Dublin, specialising in modern European philosophy, in particular, Kant, phenomenology, and moral philosophy. With over 40 articles in top philosophical journals, and a book entitled, The World Unclaimed (2003), which critically examines Heidegger's concept of the world, she has established herself as a leading voice in her field. She is currently working on a new book entitled In Search of the Self, which offers an alternative approach to the ongoing debate between "no-self" and "self" theorists. 

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