Collateral Damage

Broadly defined, collateral damage is unintentional damage or incidental damage affecting facilities, equipment or personnel occurring as a result of military actions directed against targeted enemy forces or facilities. Such damage can occur to friendly, neutral, and even enemy forces. Determining collateral damage con-straints is a command responsibility. If national command or theater authorities do not predetermine con-straint levels for collateral damage, a corps or higher commander will normally be responsible for doing so.

USAF Intelligence targeting guide