OOC
Imperial's would likely operate with a Legion sort of a system, so a complete force would have some of everything. So while they likely wouldn't have fought in the same fight's, they've likely been in a lot of the same Theatres. Otherwise I'm sure they know each other through things like the officer's mess, and perhaps a social club of some kind. It could even be a shared Mystery(secret cult of religious worship; Mithras would be an example of this.) of some kind.
Miny's fun to have around, I'm sure whatever she brings would be fine.