Who will be at war against Christ when he returns

The devil and his armies from hell

Explanation:

During the second coming Earth becomes the battle ground between the armies of Satan and the armies of God

no one

Explanation:

Well i dont know but i know for a fact that he will not step on earth, because if he does hes gonna get contaminated by all the sins and things like that, so it says that there will be trumpets and he will come from the sky.

it says that it will be nations vs nations, but they dont say specificly

there will be disasters and things like that.