Citations, please.
As you said "the Geneva Convention...states *clearly*", so this should "clearly" be easy for you to show me.
--Boot Hill
Those who are *not* legal combatants are not protected by the safeguards in the Geneva Conventions, and fall under other treaties and laws, such as the Law of War.
Without Geneva Conventions protections, unlawful combatants may be given summary battlefield justice, up to and including being shot on sight.