There are several interpretations of the book of Revelation and the apocalypse according to Christian beliefs. It is important to remember that this list is not exhaustive and only highlights those versions most widely accepted by different sects of Christianity.
This interpretation says that Christ will rule Earth for 1,000 years and at the end of this period will come his judgments of the living and dead. The righteous people will take over the world, which will usher in a time of peace. The millennialism belief involves the idea that evildoers will be punished and the good will be rewarded, ultimately balancing out good and evil.
This standpoint takes a pessimistic view of the book of Revelation. Premillennial groups believe that things on Earth are getting worse and worse, continuing to deteriorate until God steps in and take catastrophic action. They also believe that there will be a time of destruction and war (the tribulation) before the Second Coming of Christ, which will end with the Battle of Armageddon.
This interpretation says that we are currently in the millennium, which started with Christ’s Resurrection. Postmillennialism aligns with the notion that Christ is ruling Earth from Heaven and the Second Coming of Christ will occur at the end of the millennium. Once this happens, it will be a time of peace and justice and marks the achievement of the kingdom of God here on Earth.