The decision to construct a defense line was not just made by the Southeastern Province, but almost all the border provinces in the south made the decision in the shortest time — to construct a defense line.
One must admit, the sense of crisis among the aristocrats of the Alpha Kingdom is strong.
Just a hint of trouble, even when the enemy is not yet certain, they spontaneously begin to prepare for war.
The assassination case hasn't uncovered any clues yet, but the defensive line construction plans of various provinces have already appeared in front of Caesar IV.
As per tradition, nobles do not need to report to the King when building military defense lines on their own territories, the kingdom even encourages border nobles to build more castles, more fortresses.
The fact that they are submitting such formal requests certainly isn't because the nobles respect the King more. There is only one primary purpose they have — money!