Ἔκταξις κατ' Ἀλανῶν

From LSJ

Πρὸς υἱὸν ὀργὴν οὐκ ἔχει χρηστὸς πατήρ → Boni parentis ira nulla in filium → Ein guter Vater zürnt nicht gegen seinen Sohn

Menander, Monostichoi, 451

Wikipedia EN

Ektaxis kata Alanon (Ἔκταξις κατὰ Ἀλανῶν) is a work of a now fragmentary nature; the title is translated as Deployment against the Alani or The order of battle against the Alans or referred to simply as Alanica. It is thought not have been written as a presentation of facts but for literary reasons. Pertaining to the relevant historical facts, though, while governor of Cappadocia, Arrian repelled an invasion of the Alani sometime during 135 AD, a struggle in which Arrian's two legions were victorious.

Within the work, Arrian explicitly identified the particular means of pursuing warfare as being based on Greek methods.

Ektaxis kata Alanon is also translated as Acies contra Alanos. The work was known for a time as A History of the Alani (Alanike via Photius). A fragment describing a plan of battle against the Alani was found in Milan around the 17th century which was thought at that time to belong to the History.