What Makes an Attack a War Crime?
A photograph of a destroyed apartment can prove terrible civilian harm without, by itself, proving every legal element of a war crime. Investigators must reconstruct what the attacker knew, intended, targeted, and could reasonably have done differently.
International humanitarian law applies to every party in a conflict. Its rules do not depend on whether a government describes its war as just or defensive.
Civilians and Military Objectives
The principle of distinction requires attacks to be directed at combatants and military objectives, not civilians or civilian objects. A military objective must contribute effectively to military action, and its destruction or capture must offer a definite military advantage in the circumstances at the time.
Homes, schools, places of worship, and businesses are normally civilian objects. They can lose that protection while being used in a way that makes them military objectives, but suspicion or a broad claim about an area's military value is not enough.
Directly and intentionally attacking civilians or civilian objects can be a war crime. An attack may also be indiscriminate if it cannot be directed at a specific military objective or its effects cannot be limited as the law requires.
Proportionality and Precautions
A lawful military target does not make every attack on it lawful. The proportionality rule prohibits an operation expected to cause incidental civilian death, injury, or damage excessive in relation to the concrete and direct military advantage anticipated.
This is not a comparison between total casualties on the two sides, and it is not a claim that civilian lives have a numerical price. It examines the attacker's reasonable forecast before the strike rather than judging only from the final toll.
Attackers must also take all feasible precautions. That can include verifying the target, selecting a more precise weapon or different time, warning civilians when circumstances permit, and cancelling an attack if new information changes the assessment.
Defenders have duties to protect civilians under their control from military dangers where feasible. A defender's violation, however, does not remove the attacker's separate obligations.
Hospitals, Prisoners, and People Out of Combat
Medical facilities and personnel receive special protection. A hospital does not lose it merely because wounded soldiers are treated there, and even harmful military use generally requires a warning before protection can cease.
The ICRC's explanation of the rules of war covers distinction, proportionality, precautions, and the narrow conditions affecting specially protected sites. Those rules remain relevant when examining attacks such as the strike on Okhmatdyt.
Combatants who surrender, are detained, or are incapacitated by wounds are no longer lawful targets. Torture, cruel treatment, sexual violence, and summary execution of prisoners are prohibited, as are taking hostages and humiliating detainees.
From an Unlawful Act to a Criminal Case
Not every violation of the law of war is automatically prosecuted as a war crime. Criminal responsibility requires a defined offence, evidence linking an individual to it, and the necessary intent or knowledge.
Investigators examine weapon fragments, videos, satellite images, orders, communications, target intelligence, witness accounts, and patterns across attacks. They also test alternative explanations, including interception debris, malfunction, or an incorrect target assessment.
Ukraine's police and prosecutors, the International Criminal Court, a UN commission of inquiry, foreign national authorities, and civil-society groups all document alleged crimes. The ICC investigation covers alleged Rome Statute crimes committed on Ukrainian territory from November 2013 onward, regardless of the alleged perpetrator's nationality.
Civilian death is therefore neither legally irrelevant nor automatic proof. The right conclusion depends on the target, expected advantage, foreseeable harm, available precautions, weapon, circumstances, and evidence of the decision-maker's state of mind.
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