"The LORD is my rock, my fortress and my deliverer; my God is my rock, in whom I take refuge. He is my shield and the horn of my salvation, my stronghold. I call to the LORD, who is worthy of praise, and I am saved from my enemies. The cords of death entangled me; the torrents of destruction overwhelmed me. The cords of the grave coiled around me; the snares of death confronted me. In my distress I called to the LORD; I cried to my God for help. From his temple he heard my voice; my cry came before him, into his ears."
From Daniel 8:1-7, 21 we know Greece conquered Medo-Persia. Daniel 8:21 “ And the rough goat is the king of Grecia: and the great horn that is between his eyes is the first king. ” God did not name the fourth kingdom directly as He knew the Bible would be in the hands of a very powerful Church for a very long period of time and would be prone to editing if they knew that they were described in these prophetic books of the Bible. However, there is no mistaking that history reveals Rome conquered Greece and is the fourth kingdom and is described as having IRON legs (Daniel 2:33), IRON teeth (Daniel 7:7) and that Rome is known as the IRON monarchy that fell and was divided into ten kingdoms. (Daniel 7:23-24)