The Great Transition & Eternity
Chapters 19-22 cover a lot of ground, but there are two major things going on here. Jesus Himself is on earth to put an end to the wickedness and transition earth into His eternal kingdom.
Jesus now meets the armies of the Antichrist in Jerusalem
Casts the antichrist and false prophet into the lake of fire (hell)
Personally kills all the rest of the rebellious army & allies
Buzzards will literally eat the rotting flesh of the dead