In war there are legitimate and illegitimate targets. Combatants can be killed; civilians shoudn't be deliberately targeted. This is a matter of international law, but is also believed to be a moral principle. Some philosophers have argued that a combatant/civilian distinction is unsustainable. Seth Lazar , of the Australian National University, disagrees. In this interview with Nigel Warburton he explains why.
Previous Philosophy Bites interviews on ethics and war: