raison d'état
noun
(pl. raisons d'état. 读音同)
- a purely political reason for action on the part of a ruler or government, especially where a departure from openness, justice, or honesty is involved（尤指涉及偏离公开、公正、诚实之事）以政治利益为重的理由; 政治理由; 外交理由。
词源
French, literally 'reason of state'.