The cult of the Dark Goddess

Map description.

She will come! Soon! Very soon! And she will bring with her the sprouts of the earth mother! You fools! You don't understand! But there will be a harvest of all the unconverted!
You will become a graveyard at her feet! — shouted the cultist lying on the floor at the king's feet, his hands bound behind his back. Enough. Gag him — the king said quietly. In that same second, the guards shoved the gag back into the cultist's mouth and dragged him by the collar out of the throne room.
Now you can see for yourself, Your Majesty, that negotiations with them are impossible, said the minister, turning to the king. And how did it happen that one of my cities ended up captured by these lunatics? — the king asked angrily. Well, the mayor, Sir Godric, was recruited by them and...
I know that even without you! — the king exclaimed with irritation. But what were my secret agents doing? Preventing such recruitments is exactly what their primary duties entail. These cultists somehow figured out who the secret agents were and cut off their... uh... What did they cut off? Everything. They cut off everything. The bastards! — the king grew increasingly irritated.
Surely not all the city residents are susceptible to the influence of this cult? Apparently almost all of them, Your Majesty. You should have seen the enormous statue of this goddess they erected near the city. Such a statue could not have been built unless the entire city took part in its construction. Moreover, after the statue was built, the land there turned some kind of gray-brown, normal vegetation disappeared, and everything became overgrown with some kind of filth. So you're saying the statue affects the land, and that legend about the dark goddess turned out to be true? — the king was surprised. I don't know what to say, Your Majesty — the minister was at a loss.
Fine. Well, what happened on the western borders? — the ruler inquired. On the western borders, Sir Ilham is preparing for war again — the minister replied.
Of course! That rat Ilham has already gotten wind that we lost an entire city! — the king exclaimed. Well, he is after all your distant relative in the tenth generation and also has claims to the throne — the minister noted timidly. He's a dick-sucker in the tenth generation! He'll never see my throne, not as long as he has ears! — the king shouted.
Listen to my order! First of all, blow up the bridge near the city of those psycho cultists. That will hold them back for a while. In the meantime, build up the defense in the west and meet the army of that dick-sucker.
We'll be fighting on two fronts, damn them all! But first, blow up the bridge. Understood? Execute!
It shall be done, Your Majesty — the minister replied, turned around, and left the hall.