E.C. Marchant, Commentary on Thucydides: Book 3

ἐς τὸν καιρὸν τοῦτον—‘at this crisis,’ like ἐς μίαν ἡμέραν in VI. 16, Aristoph. Pax 366 εἰς τίν᾽ ἡμέραν;

καὶ παρὰ τοὺς νόμους ἀδικεῖν—cf. c. 82, 6 παρὰ τοὺς καθεστῶτας (νόμους). As Stahl says, we expect κρατήσασα after τοὺς νόμους, ‘even when the laws are generally respected.’ Steup suggests the loss of πρίν after καί but Dio Cass. knew the passage as it stands.

ἐδήλωσεν . . οὖσα—obj. of δηλῶ replaced by the partic., as often; cf. I 21 ὁ πόλεμος δηλώσει μείζων γεγενημένος.

τοῦ προύχοντος—neut.

ἐν ᾧ—lit. ‘in a case in which,’ amounting to εἰ. Cf. II. 35 χαλεπὸν τὸ μετρίως εἰπεῖν ἐν ᾧ μόλις καὶ ἡ δόκησις τῆς ἀληθείας βεβαιοῦται.