In English law, Irish law and Northern Irish law, unlawful killing is a verdict that can be returned by an inquest in England and Wales and Ireland when someone has been killed by one or more unknown persons.
An unlawful combatant, illegal combatant or unprivileged combatant/belligerent is a person who directly engages in armed conflict in violation of the laws of war and therefore is claimed not to be protected by the Geneva Conventions.