casus belli

IPA(Pronunciation)

An act seen as justifying or causing a war; an act of war.

Japanese Meaning

戦争を正当化または引き起こす行為 / 開戦の口実

The invasion of the border village was cited as a casus belli by the neighboring state.

隣国は国境の村への侵攻を戦争の口実として挙げた。

Sense（1）

An act seen as justifying or causing a war; an act of war.

Algiers seethed, and this was the casus belli for the ‘ultras’ to attempt a general strike.

casus belli

（ plural ）

casus bellis

（ plural ）