Last Updated：2025/11/22

A formal announcement by a country or other body with military capability that it is in a state of war with another such entity.

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declaration of war

Source Word

declaration of war

Noun

Japanese Meaning

宣戦布告 / 戦争宣言

The president's unexpected declaration of war stunned the international community and triggered emergency meetings.

大統領の予期せぬ宣戦布告は国際社会を驚かせ、緊急会議を招いた。

Sense（1）

declarations of war

（ plural ）