Daniel 8 - G. Campbell Morgan's Exposition on the Whole Bible

Two years later, in the third year of king Belshazzar's reign, another vision came to Daniel. It was of a ram with two horns pushing westward, northward, and southward. As Daniel watched, a he goat attacked the ram, and overcame him, and magnified himself. Four horns appeared, out of one of which came another, which grew until it had broken down the sanctuary. A voice of a holy one inquired how long this would continue, and the answer was given to Daniel.

Again he pondered the vision, and sought to understand it, and an interpretation was given to him. The two- horned ram represented the united power of Media and Persia, the rough he goat was the king of Greece. Against him a fierce one would arise, succeeding through policy, but ultimately being broken without hand.