I know that it is fairly typical in a Roman campaign to establish Sicily, N. Italy, and Corsica/Sardinia first to provide essential trade and mining economy and to get the polybian legions.

Do you guys usually march into gaul after this, or do you guys try to establish other historical provinces. I ask because the gauls always turn on me, but I don't want to waste time early on storming the barbarian wastelands without a bigger economy and military.

What should I do? thanks