order of events- 1. pretrib rapture 2. shortly after the 7 year tribulation 3. trib ends in second coming of Jesus. 4. 1,000 year millenial reign of Jesus on Earth.The millennial reign of Christ will begin, a time during which the false prophet and the beast (Antichrist), the first to be thrown into the lake of fire, will begin to serve their eternal sentences. Satan will be confined in the bottomless pit, and there will be none of his minions to torment and tempt the millennial earth-dwellers. It will be a time much like the times of Eden, with the earth restored to its pristine beauty. (Read Rev. 20-10.) After the 1,000 years, the devil will be released from the pit for a short space of time. He will lead millions of those who have been born during the millennium in an assault on Christ at Jerusalem. God will send down fire and consume them all. Satan will be cast into the lake of fire. The lost dead will be resurrected (their eternal bodies joined to their souls), and all will stand before the great white throne of Christ to be judged. All will be cast into the lake of fire for eternity. (Read Rev. 20:10-15.) God “Jesus Christ” will remake the heavens and the earth in preparation for everlasting, ever-growing ecstasy in God’s presence. (Read Rev. 20:16-22: 16.)
What rapture?
In Matthew 24, Jesus describes a moment where people will be swept away from the Earth in a flash.
Two women will be grinding
oat the mill; one will be taken and one left.
There are a few other verses, but this makes the point, that two people will be working together, and in a blink, one will be gone, while the other is left behind. There was a popular series of books based on this event, called "left behind".
https://www.amazon.com/dp/B00MGV8W06/?tag=usmb-20
While the books are obviously fictional novels, the concept is pretty accurate. The idea is that when G-d actually does dish out divine judgement on the Earth, that he will not harm the good followers of G-d with the evil. In Genesis 19, we see that the Angels of destruction were sent to Sodom, and they pushed Lot, and his wives and family out of the city saying "But flee there quickly, because I cannot do anything until you reach it".
You can read the entire chapter on your own, but the basic run down is, until the good people before G-d left the city, G-d did not bring down the judgement on the city.
Similarly, we believe that when G-d does bring down divine judgement on the Earth, that all Christians will be raptures away.
In fact I think the Rapture itself will be absolutely horrifying, to those left here. I would wager as Christian pilots disapear mid-flight, Christian truck drivers disappear from Semis on the highway, Christian doctors vanish during surgery, Christian plant workers disappear from safety controls, and Christian government officials disappear from their offices, and in some cases entire small towns may vanish in a moment, and as this happens in every country and nation, and land of the Earth....
I think the entire world will be in shock and horror, before a single judgement of G-d even happens.