casus foederis
English
Etymology
From Latin casus (“case”) + foederis, genitive of foedus (“treaty”).
Pronunciation
- (UK) IPA(key): /ˌkeɪ.səs ˈfiː.də.ɹɪs/
Noun
- A situation covered by the terms of an international treaty (or similar understanding), and which consequently requires action from the parties involved.