Archie can see that the entire inn is full of military. Some appear to be privates, relaxing after what was likely a hard day of work, others are of a higher rank, quietly discussing in their own groups about private matters. The most important looking person in the room who belongs to the military is a bugbear sitting in a far corner, speaking to two hobgoblins.
An inn that exists for the use of the Republic's military and those that they recommend, the Whispering King Inn was first encountered during the events of Clockwork Gargoyles 2: Tank Girl.