Repelling the enemy to the extent of one's ability

Question:
I seek forgiveness from Allah. Speaking about this via the internet is one of the purposes, and it is truly strong. After another lesson, if Allah wills. His question is: It is said that Shaykh al-Islam (may Allah have mercy on him) stated that the enemy who corrupts religion and the world—there is no going back after faith from repelling them. So one does not choose a condition for him, but rather repels him according to ability, and the scholars have explicitly stated this. And that it should be harmful to him, or rather beneficial according to ability? Is there a connection between the state of the enemy during his siege and his repulsion from a Muslim country, and his state during his occupation and control of that country, regarding the obligation of combining and the conditions?

Answer:
This is like what we said: if an enemy besieges a town and the Muslims have the ability to repel him, they must repel him. But if they have the ability, may Allah protect you, it is not easy for them; if they have the ability, they must repel them. If they do not have the ability, Allah the Exalted says: "Allah does not burden a soul beyond that it can bear." Yes.