242/05/13/CT
PHIL 242 LECTURE THIRTEEN:
INTRODUCTION TO JUST WAR THEORY
1. War and violence
• Violence involves damage or harm to persons or property. Violence and killing
are prima facie wrong, wrong on the face of it, but in some cases some violence
can (arguably) be justified eg self defence.
• State force and coercion underlie the maintenance of law and order within a
political community, so (arguably) the use of force by state is justified
• War is a form of violence , specifically a deliberate and widespread armed
conflict between political communities or states
Can war (violence conducted by states against other states) be justified in moral or ethical
terms?
Consider 3 answers:
• war is sometimes justified, sometimes unjustified (just war theory),
• war is never justified (pacifism),
• moral concepts don’t apply to war (sceptical or realist position)
2. Sceptical or realist position
A state is not a moral agent like a person. In international affairs, states have fundamental
interests in power and security, and should do whatever it takes to maximise their
interests. A state should resort to war if doing so is in its national self interest, and then
should do whatever it takes to win. This amounts to an amoral policy of self regard, that
sets no limit to international aggression. (There might be prudential limits to undertaking
war, but such a decision is not about justice.)
Descriptive version: states do behave in this way
Prescriptive version: states should behave in this way
Realism applies to war at least two levels – first, regarding a decision to go to war,
second, regarding the things people are prepared to do in order to win a war
But contemporary and past practices do not support an ‘anything goes’ view of war –
conduct of war is up for moral scrutiny. There is serious public debate and discussion
about whether a country should go to war, and international law includes the Hague and
Geneva Conventions that concern armed conflict. (Walzer)
3. Just war theory
Jus ad bellum Justice in going to war
Jus in bello Justice in the conduct of war
Jus post bellum Justice after a war
Jus ad bellum – six criteria for a just war. All six requirements must be fulfilled if a
political community is to wage war legitimately.
(1) Just cause principle – to use force against another nation, there must be a
serious reason such as self defense, the protection of innocents, or resistance
to aggression
Question: are pre-emptive strikes justified?
(2) Right intention to resolve the conflicting issue and eventually gain peace
have to be the motivations. Not revenge, not cruelty, not greed.
Question: what about mixed intentions?
(3) Proper authority and public declaration the decision needs to be made by a
proper process and the citizens and the enemy state need to be aware of the
reasons for war.
(4) Last resort a military intervention should not be the first option on the list
(5) Reasonable chance of success – you probably aren’t justified in waging a
war you will inevitably lose.
(6) (Macro-) Proportionality We know that a war will produce some evil, and
even fighting for a good cause might not be worth the destruction that results.
Cynthia Townley
13/4/05