Dan 11:40-45

GOG AND MAGOG
40 At the time of the end shall the king of the south contend with him; and the king of the north shall come against him like a whirlwind, with chariots, and with horsemen, and with many ships; and he shall enter into the countries, and shall overflow and pass through. 
Dan 11:40
at the time of the end – the end of the world. See also Dan 12:1 “at that time” which is the same time, being the judgment day.  See also Dan 8:17, and Dan 11:35.

Of course, one may wonder why we jump from the “extended Roman Empire” of the beast, to the end of the world. Simply, because, the Bible tells us that Christ became “the King of Kings” after the beast was overthrown (Rev 17:14), and Satan was bound for 1,000 years. Christ will remain the ruler, until Satan is released from prison to deceive the nations again (Rev 20:7).

It is the final defeat of the king of the North that brings us to the judgment day (Dan 12:1).
41 He shall enter also into the glorious land, and many [countries] shall be overthrown; but these shall be delivered out of his hand: Edom, and Moab, and the chief of the children of Ammon. 42 He shall stretch forth his hand also on the countries; and the land of Egypt shall not escape. 43 But he shall have power over the treasures of gold and of silver, and over all the precious things of Egypt; and the Libyans and the Ethiopians shall be at his steps.
Dan 11:41-43
This passage seems to detail the steps of the final invasion by the King of the North. This detail cannot be found in Revelation or Ezekiel Chapters 38 and 39, or Zechariah Chapter 14. It is worthy of note especially given the accuracy of the rest of Daniel Chapter 11.
44 But news out of the east and out of the north shall trouble him; and he shall go forth with great fury to destroy and utterly to sweep away many. 
Dan 11:44
rumors from the East and the North – In Rev 16:12, we read that the Angel dried up the Euphrates to make way for the kings from the East. It seems likely that the King of South, who opposes the King of the North is actually the Kings of the East, or at least supported by the Kings of the East. We can also see from this verse that not all the European nations are supporting the King of the North. We also find this in Ezekiel Chapter 38.
45 He shall plant the tents of his palace between the sea and the glorious holy mountain; yet he shall come to his end, and none shall help him.
Dan 11:45
he will come to his end – as prophesied in Ezekiel Chapters 38 and 39.