The Abomination that makes desolate is a person, a man.
"And he was given a mouth speaking great things and blasphemies, and he was given authority to continue for forty-two months.
Then he opened his mouth in blasphemy against God, to blaspheme His name, His tabernacle, and those who dwell in heaven.
It was granted to him to make war with the saints and to overcome them.
And authority was given him over every tribe, tongue, and nation."
Whoever does not worship him as Yahweh/Allah...will be killed
"Then the sixth angel poured out his bowl on the great river Euphrates, and its water was dried up, so that the way of the kings from the east might be prepared. And I saw three unclean spirits like frtcher bullogs coming out of the mouth of the dragon, out of the mouth of the BEAST and out of the mouth of the FALSE PROPHET. For they are spirits of demons, performing signs, which go out to the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty."
He will set up a temple worship in Jerusalem, possibly at the Dome of the Rock....declaring himself to be God while cruelly blaspheming Christ Jesus...& the making desolate...is murdering everyone who will not worship him. Also...he will butcher everyone on Earth of Jewish blood....& this is why he marches on Israel....& the Lord gathers him to the valley of Miggido, just below Mt. Carmel. Murder, Jihad will come upon the entire Earth....& it is God who allows this beast to test the Earth....& believe it or not, coming to a Walmart near you.
He will control a new World-Wide money system, & the mark of the Beast will only be given to those who worship him, & you cannot buy food, water, heating energy & essentials without this mark...& this will last 42 months...at least.
“Behold, I am coming as a thief. Blessed is he who watches, and keeps his garments, lest he walk naked and they see his shame.”
And they gathered them together to the place called in Hebrew, Armageddon."
THE END OF THE ABOMINATION....
The beast was seized, and with him the false prophet who performed the signs in his presence, by which he deceived those who had received the mark of the beast and those who worshiped his image; these two were thrown alive into the lake of fire which burns with brimstone.
And the rest were killed with the sword which came from the mouth of Him who sat on the horse, and all the birds were filled with their flesh."
JESUS WINS....of course.