Break siege

[Redeyes]

Certainly, the fight will be just as if your forces were moving into the same enemy province.

[Viajero]

Another one, also related with fortresses:

If I move back my army to a province where I have a fortress, and an enemy atacks that province in the same turn, will my army join my DP to defend in this turn or will it be inside the fortress and therefore not fighting this turn?

My goal would be to have my returning army join forces with the DP (in a province with a fortress, remember)so to repel the enemy attacjing, is that possible?