Satan's Kingdom Is Being Attacked by the Power of Demons

When Jesus is casting out demons, everybody understood that this in and of itself was an attack on the kingdom of Satan. And so Christ right there is saying, look, yes, you are correct that Satan's kingdom is being attacked right now. In fact, not only am I slaying it, but I'm about to plunder it. But first in order to do that, I have to bind the strong man."