This clip is a part of the full conversation which you can find at:
https://www.youtube.com/watch?v=5zfriaFxmis
In this clip they are trying to say that it will be a representation of God that will be doing the fighting at the end of this world. They also seemed to be quick to say that any descriptions of the fighting that will happen at this time, are just metaphors for what will actually be happening. They do not seem to think that God could be reducing the wicked of this world, to the level where they have to fight with swords on horses. It seems to me as if people have become too comfortable with how this current world is set up.