Final answer:
Prisoner of war camp commanders could be tried for their actions under the Geneva Convention if they mistreat prisoners, as these conventions set rules for the humanitarian treatment of individuals during war.
Step-by-step explanation:
The question asks which group could be tried for their actions under the Geneva Convention. The Geneva Conventions are a series of treaties and protocols that set standards for humanitarian treatment in war. Under these conventions, certain protections are provided to civilians and prisoners of war, and certain responsibilities are placed upon those who are in charge of prisoners.
Considering the options given:
- Combat medics are protected under the Geneva Conventions and are not meant to be tried for fulfilling their duties in treating the wounded.
- Antiwar protesters are generally civilians expressing their opinions and are not subject to trial under the Geneva Conventions.
- Black market traders, although they can be involved in illegal activities, their actions are not directly covered under the Geneva Conventions.
- Prisoner of war camp commanders are responsible for the treatment of prisoners in their camps and could be tried for war crimes if they violate the Geneva Conventions' regulations, such as by mistreating POWs.
Therefore, the most accurate answer to the question is that Prisoner of war camp commanders could be tried under the Geneva Convention for their actions if they are found to have mistreated prisoners.