As Spartan chariots and hoplites bear down on Adrianople, a Pax Adriaticum is signed; you'd have to say Caesar made his point, but with such a tiny population, it's hard to see how he comes back from so far behind. Well there *is* a city that might suit, one which Rome has a history of, shall we say, salting away. Carthage. Not far away either. But, just spitballing. Probably nothing but grinding against Portuguese triremes for the foreseeable future, for Augustus.