ὁπλομαχία
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
ἡ,
A fighting with heavy arms, the art of using them, Pl.Lg.813e,833e, X.An.2.1.7, Ephor.54J.; as a form of athletic exercise, SIG1061.11 (ii B. C.), OGI339.81 (Sestos, ii B. C.), Antyll. ap. Orib.6.36.
German (Pape)
[Seite 360] ἡ, das Kämpfen mit schweren Waffen, die Kunst, mit solchen Waffen zu kämpfen; Plat. Legg. VII, 813 e VIII, 833 e; ἐπιστήμων εἶναι τῶν περὶ τὰς τάξεις τε καὶ ὁπλομαχίαν, Xen. An. 2, 1, 7.