military matters
From LSJ
ἢ δεῖ σιωπᾶν ἢ λέγειν τὰ καίρια → you should either keep silence or make timely remarks (Menander)
English > Greek (Woodhouse Extra)
⇢ Look up "military matters" on Perseus Dictionaries | Perseus KWIC | Perseus Corpora | Wiktionary | Wikipedia | Google | LSJ full text search