πόλεμος ἀκήρυκτος

From LSJ

ταράσσει τοὺς ἀνθρώπους οὐ τὰ πράγματα, ἀλλὰ τὰ περὶ τῶν πραγμάτων δόγματα → what disturbs people is not what happens, but their view of what happens | it is not the things themselves that disturb men, but their judgements about these things

Source

Greek > English (Woodhouse)

war to the knife