Which term denotes an unintentional or incidental effect on objects that would not be lawful military targets under the circumstances ruling at the time?

• A. PID
• B. CID
• C. CDE
• D. Collateral effect (CE)

Answer: (D)

Collateral effect refers to the unintentional or incidental result of striking a legitimate military target that affects objects not lawful targets under the circumstances. In planning a strike, you target a valid military objective, but nearby objects or infrastructure can be impacted as a secondary consequence. These incidental effects must be weighed against the military objective through proportionality, ensuring the expected impact is not excessive and that precautions are taken to minimize harm to civilians and civilian objects. The term captures exactly the idea of unintended consequences on non-targeted objects, distinguishing it from the primary target outcome. The other terms listed aren’t standard descriptors for this concept.