Are you afraid of an orc attack, too?
Being the League’s only seaport, Riva ought to be a favorite target of the orcs. On the other hand, there’s only an absolute minimum of warriors left in the surrounding villages. It’s not clear whether the others are gathering for an attack somewhere or whether they’ve really gone off to the south to join the big orc armies.
A lot of people think the holberks are pulling the strings behind the orc uprising.
It would be rash to dismiss that out of hand. At least that could explain why Riva has been spared an attack, when it should have been a favorite target for the orcs, due to its importance.