Suggestion quality of life for land units

*QOL for land units*

I don't know for sure if this function is already in the game, but it is worth proposing that when you attack an enemy from several directions (several streets) to have a defense penalty and when you encircle a city (that is, you conquer all the cities around him becoming isolated) that all the troops inside him to lose their morale very quickly or to surrender within 24 hours. being like a bunch of players, when they lose, they send all the troops to one city, make a big fort and then leave the game, and this is a bit annoying.