An he — goat — The Grecian empire. The whole earth — The whole Persian empire. Touched not the ground — Went with incredible swiftness. A horn — This was Alexander the great.
Related Commentaries of Daniel 8:5
Daniel 8:5
5 And as I was considering, behold, an he goat came from the west on the face of the whole earth, and touchedb not the ground: and the goat had a notable horn between his eyes.