Thesis
A conscript who fights well in an unjust war does nothing wrong by fighting
Its coordinates: 3.3.5 War and Political Violence
Where it stands
I served twenty-two years, the last part on the DMZ. Most of the young men I trained were conscripts doing their compulsory service. None of them chose the war they might be sent to.
Michael Walzer, in Just and Unjust Wars (1977), defends what he calls the moral equality of soldiers. The justice of going to war (jus ad bellum) is the responsibility of leaders. The justice of conduct in war (jus in bello) is the responsibility of soldiers. So a soldier who fights within the rules, attacking only combatants, does nothing wrong, whichever side he is on. He may be killed, and he may kill, as the soldiers opposite may.
The modern objection, made most strongly by Jeff McMahan, is that this cannot be right. A soldier fighting for an unjust cause is like an attacker in a street fight: the person defending himself has a right to resist, but the attacker has no right to kill the defender. Following the rules does not make an unjust attack just.
Thesis: Walzer is right, at least for conscripts. A young man who fights well in a war he did not choose and could not judge does nothing wrong by fighting.
I hold this, but not comfortably. I have seen what "moral injury" means in men who did their duty and could not live with it afterwards. Please mark your side.