noun
public international law
Technical legal term referring to the body of law governing relations between sovereign states and international entities.
国際公法の講義で、国家主権と条約の関係について学んだ。
In the public international law lecture, we studied the relationship between state sovereignty and treaties.
国際私法 (private international law) deals with conflicts of laws in private legal matters across borders, while 国際公法 concerns relations between states.
Compound of 国際 (international) and 公法 (public law), a calque from Western legal terminology.