To me the whole DS9 series was good action, but a complete joke from a Stellar Cartagraphy point of view
Its has been said that "Betazed" was the furthest the Dominion pushed into Federation space,
However we also heard that the Romulans liberated "Benzar"
Now i for one do not see how this could of happened, "Benzar" is LY away from Cardassian space, Much much further away than Earth
I do now believe anyway that the Dominion would of been able to take and hold "Benzar" without any kind of supply
If you manage to get hold of the ST Star Charts Book, that was endorsed by Paramount, You,ll see what i mean
The truth is that the Domionion would of had to travel LY across Federation space to attack Romulan or Klingon Space
I remember at the end of the War, The Federation Alliance launched their attack on Cardassian space from Deep Space 375 which is not far from "Trill"
Now "Trill" would of been a much more accessable target for the Dominion that "Benzar" or "Bolarus", and a much more
winable scenario