is a person who is not a member of a military
. Under the Fourth Geneva Convention
it is a war crime
to deliberately attack a non-combatant
civilian or wantonly and unnecessarily destroy or take the property
of a civilian.
However, civilian property may be destroyed in pursuit of a military objective; civilian property may be seized for military use; and collateral damage is an accepted part of war.
In practice, the neat division between combatants and non-combatants implicit in such treaties can get very blurry, particularly in guerilla warfare where the guerillas receive the support of the local population. It is sometimes argued that the division between civilian and military and the abhorrence towards attacks on civilians is a reflection of Western attitudes to war, and that other societies do not make such distinctions but find other aspects of Western-style warfare abhorrent (such as strategic bombing).
See also: Laws of war, combatant.
is also the name given to a jurist
of the civil law
as in civilian jurisdiction