(During the tribulation, it seems that there will be many fallen celestial beings unleashed upon the earth:)

Revelation 9:2 And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.

  3 And there came out of the smoke locusts upon the earth: and unto them was given power, as the scorpions of the earth have power.

  5 And to them it was given that they should not kill them, but that they should be tormented five months: and their torment was as the torment of a scorpion, when he striketh a man.

Revelation 9:14b Loose the four angels which are bound in the great river Euphrates.

  15 And the four angels were loosed, which were prepared for an hour, and a day, and a month, and a year, for to slay the third part of men.

Revelation 12:7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,

  8 And prevailed not; neither was their place found any more in heaven.

  9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

(Will the angel wars continue, when the angels of God come down with Jesus, when he returns, and then will these angels fight with the fallen celestial beings that will be already on the earth?)

Joel 3:11b  thither cause thy mighty ones to come down, O LORD.

II Thessalonians 1:7 And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels,

Matthew 16:27 For the Son of man shall come in the glory of his Father with his angels; and then he shall reward every man according to his works.

Matthew 25:31 When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory:

(Will it be similar to how the following was?)

Judges 5:20 They fought from heaven; the stars in their courses fought against Sisera.

II Kings 6:17 And Elisha prayed, and said, LORD, I pray thee, open his eyes, that he may see. And the LORD opened the eyes of the young man; and he saw: and, behold, the mountain was full of horses and chariots of fire round about Elisha.

(If the fallen celestial beings could not prevail in the war in heaven, is it safe to assume that they will not be able to prevail, as the fighting follows them down onto the earth?

Will they all then be confined to the lower parts of the earth, to await the day of judgment, after the thousand year kingdom?)

.