Well according to the bible. Everyone will have to go through the great tribulation unless the rapture is true then only those that haven't repented will face tribulation. So majority of humanity. Then they will have to go through the 7 trumpets 1-6 are merciful as in you can still repent through them. However once 7 is blown the people are irrideemable and will face the final seven plagues just before the return of Christ.