This will be last and final event of the Great Tribulation. The Bible says that immediately after the Tribulation occurs, Jesus will return back to us for His second coming! Here are 2 key verses on this battle and how it all gets set up in the first place.
1. This 1st verse is very, very interesting. It implies that the Antichrist does not have full control over the entire world. It says that he hears "news" from the east and north that trouble him. This news causes him to go out in "great fury" to annihilate many. My guess is that China and Russia do not want to come under his rule and they are setting up to come against him. Here is the verse:
"But news from the east and the north shall trouble him; therefore he shall go out with great fury to destroy and annihilate many. And he shall plant the tents of his palace between the seas and the glorious holy mountains; and yet he shall come to his end, and no one will help him." (Daniel 11:44-45)This verse tells us that he is going to meet his end and that no one is going to be able to help him. As you will see further down, Jesus is the one who will be putting an end to him - so this verse is showing us that this event will lead up to the battle of Armageddon.
2. In this next verse, the word Armageddon is actually used to describe the place where this battle is going to take place. Armageddon is the plain of Megiddo which forms the only pass through the mountains which enters from the North and South of Israel. It is in northern Israel and it is a natural pass from the Mediterranean Sea through the mountains and the interior of Israel.
This next verse tells us that the Euphrates River will dry up so that a pass and a way is made for the kings of the east to come against Israel and the Antichrist in this last battle. Here are the verses describing all of this:
"Then the sixth angel poured his bowel on the great river Euphrates, and its water dried up, so that the way of the kings from the east might be prepared. And I saw three unclean spirits like frogs 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 that great day of God Almighty ... and they gathered them together to a place called in Hebrew, Armageddon." (Revelations 16:12-16)Also notice that the demons that are in the Antichrist and False Prophet will be the ones that will go out and draw the rest of the nations to Armageddon for this last and final battle. The stage is now set. You have what is probably China coming in from the east, possibly Russia, Libya and Iran coming from the north and the troops from the Antichrist