A slim little volume in the prolific genre of Byzantine military manuals, this one entirely devoted to psyching up your men before they slammed into a force of Arab raiders from over the border in Cilicia. There is timeless advice, like telling your men that the boss (the Emperor of the Romans) is watching or, in defeat, telling your men "it's not you, it's me" to console them. And then there are anecdotes stretching back into Biblical and Classical antiquity that defined the bifurcated and blended cultural and ethnic heritage making up the medieval Roman state and society.
I'm translating HBO's Rome into Latin at the moment so I'll definitely read this. My mainstay (apart from lifting idioms from Caesar and Sallust) has been Rolando Ferri's paper "Language Use in the Roman Army" which I bet you would enjoy. Mostly Latin but he goes into the Greek from some earlier Byzantine sources.