casus foederis

English

Etymology

From Latin casus (“case”) + foederis, genitive of foedus (“treaty”).

Pronunciation

• (UK) IPA^(key): /ˌkeɪ.səs ˈfiː.də.ɹɪs/

Noun

casus foederis

1. A situation covered by the terms of an international treaty (or similar understanding), and which consequently requires action from the parties involved.