high seas; international waters
Refers to ocean areas not under any country's jurisdiction, often used in legal, political, or news contexts.
公海での漁業は国際法で規制されている。
Fishing on the high seas is regulated by international law.
その船は公海で拿捕された。
The ship was seized in international waters.
The ship was sailing through international waters.
The fishing boat crossed the territorial waters and went out into the high seas.
A collision occurred on the high seas.