Thanks, Orvis Tertia. I did establish friendly relations with Thrace and Dacia, but didn't formally ally with them or ask them to attack. I wanted no competition for Thessolonica.

In hindsight, though, you have a point. It might have made more sense to encourage either of those factions to attack -- then clobber them when the Macedonians were dead.

Also, I didn't massacre or enslave anybody in the Greek cities. Although several of those towns required very heavy garrisons, they are now the Brutii population and economic base. Expanding into eastern Asia Minor by sea was pretty easy with these rich provinces providing ships and troops. "Happy" buildings should reduce the need for garrisons soon enough.