Guardian Spirit of Persia
A ram with clean feet and sharp-pointed horns is the guardian spirit of Persia. The king would hold the head of a ram when he was at the head of the army.
Source: Daniel by John F Walvoord
Related:
Dan 8.3
(3) Then I lifted up my eyes, and saw, and behold, there stood before the river a ram which had two horns. The two horns were high; but one was higher than the other, and the higher came up last.