How do I attack a strongly-defended position?

[NTJedi]

IndyPendant... in my opinion we need more information for what units, mages, thugs and SCs are expected to be in the province when you attack. Also any blessings and the type of sacred units for the attacker and defender.

This late in the game it's unlikely the ususal Arco troops are the only ones defending.

[Zeldor]

NTJedi:

In battles like that troops are not so super important. If he cannot survive one turn then Arco can as well have just 1000 militia around mages