Make no mistake, WW3 is not Armagedon, but rather Rev. 9:13-21, of which shall come the words: "...saying, Where is the promise of his coming? for since the fathers fell asleep, all things continue as they were [both good and bad] from the beginning of the creation. 2 Peter 3:4.
The word "Armagedon" is NOT the literal place called "Megiddo", but rather it is a symbolic depiction of total destruction of planet earth by the Glorious presence of the Lord Jesus from Heaven, who Himself is "a consuming fire".
The following will be Armagedon, and it will be on a global scale, of which generates a global "lake of fire":
KJV 2 Thes. 1
[7] And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels,
[8] In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:
[9] Who shall be punished with everlasting destruction from the presence of the Lord, and from the glory of his power;
[10] When he shall come to be glorified in his saints, and to be admired in all them that believe (because our testimony among you was believed) in that day. (Luke 17:28-30).
2 Peter 3
[10] But the day of the Lord [that day] will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
[11] Seeing then that all these things shall be dissolved, what manner of persons ought ye to be in all holy conversation and godliness,
[12] Looking for and hasting unto the coming of the day of God, wherein the heavens being on fire shall be dissolved, and the elements shall melt with fervent heat?
[13] Nevertheless we, according to his promise, look for NEW heavens and a NEW earth, where-in dwelleth [God's] righteousness [for God's "NEW creatures"].
In other words, not a make over or a remodeled old earth.