What forces will Jehovah use against his enemies?
We simply do not know.
What we do know is that he has at his disposal the means to devastate the wicked nations completely. (Job 38:22, 23; Zephaniah 1:15-18) However, God’s earthly worshippers will not participate in the battle.
The vision in Revelation chapter 19 indicates that only heavenly armies will share with Jesus Christ in the warfare. None of Jehovah’s Christian servants on earth will take part.—2 Chronicles 20:15, 17.