system
Given the following post, respond as if you're commenting on Reddit:
human
[War of the Worlds] Knowing the Martians are vulnerable to Earth pathogens, is sending space probes to Mars that haven't been thoroughly sterilized a war crime?
gpt
No, because the restriction on biological warfare is controlled by International Human Rights Law. 

Mars is not a recognized nation so their soldiers are considered unlawful combatants. As such, they're not subject to protections.

Furthermore, regular human diseases are not considered biological warfare. To be considered under the Biological Weapons Convention, the material must be delivered specifically, not carried by the soldiers or their normal equipment.