Here's an interesting tale of ambush and the importance of trustworthy mercenaries, with a side order of Byzantine cunning.
https://www.academia.edu/48876999/The_Battle_of_Kalavrye_Revisited (https://www.academia.edu/48876999/The_Battle_of_Kalavrye_Revisited)
That's a good find, thanks.
Very good Anthony, thank you.