This document discusses principles of state jurisdiction under international law. It addresses topics like preemptive attack, conflicts between nationality and territoriality principles, and universal jurisdiction. Specifically, it explains that state jurisdiction arises from sovereignty and includes the power to prescribe rules/laws and enforce them. Jurisdiction is based on a state's territory, nationality of the offender/victim, or protective/universal principles. Universal jurisdiction allows any state to try certain grave international crimes like war crimes and crimes against humanity. Examples discussed include an Israeli case trying a German national for crimes against humanity.