[Alneyan]

'Twas a random event actually, where you can get some troops to attack a province (*any* province). It's unlikely to work, of course, but it *can* work if you are lucky.

Don't worry, Marignon can pay you back: they have a random event giving them an attack against Ermor (only Ermor, I think). Kind of surprising when you have a peace treaty with Ermor, and suddenly see that you've got a Dominion 5 province right in the middle of the Ermorian empire, with a handful of troops defending it.