Which international treaty outlines the treatment of prisoners of war?

The Third Geneva Convention specifically addresses the treatment of prisoners of war (POWs). It is part of the broader framework of international humanitarian law, which seeks to protect individuals who are not participating in hostilities and regulate the conduct of armed conflict. This treaty establishes detailed rules for the humane treatment of POWs, including their rights and protections, mandates against torture and inhumane treatment, and outlines the responsibilities of detaining powers.

In contrast, while the Hague Convention has provisions related to warfare, it does not focus exclusively on the treatment of POWs. The Paris Agreement deals primarily with climate change and environmental issues, and the UN Charter pertains to the establishment of the United Nations and the maintenance of international peace and security, rather than the specific treatment of individuals in armed conflict. Thus, the emphasis and detail found in the Third Geneva Convention make it the correct choice for outlining the treatment of prisoners of war.