What treaty aimed to define attacks against internationally protected persons as common crimes, regardless of motives?

The Convention to Prevent and Punish Acts of Terrorism is the treaty that explicitly aims to define attacks against internationally protected persons as common crimes, regardless of the motives behind those attacks. This treaty is significant because it establishes a legal framework for the international community to address acts of terrorism, highlighting the notion that certain acts are universally illegal and unacceptable, irrespective of their intentions or justifications.

By categorizing attacks on internationally protected persons—such as diplomats, representatives of international organizations, and other officials—as common crimes, the treaty facilitates cooperation among countries in apprehending and prosecuting perpetrators. This initiative is crucial in reinforcing global norms against terrorism and ensuring that those who commit such acts cannot evade accountability based on their motives.

The other choices do not focus specifically on defining attacks against internationally protected persons in this manner. For example, while the Geneva Convention deals with humanitarian issues in armed conflicts, it does not encompass the same specific legal framework for international attacks on persons. The Convention Against International Terrorism and the International Anti-Terrorism Treaty may address terrorism broadly but do not uniquely frame these attacks as common crimes. Thus, the Convention to Prevent and Punish Acts of Terrorism is the most precise and relevant treaty in this context.