[Just mythoughts]

More properly, Nebuchadnezzar, idolatrous king of Chaldean Babylon (basically Iraq), was given a dream, by the God of Israel, which could neither be described nor interpreted by any of his pagan “prophets”. Daniel was called upon because he was known for interpreting a previous dream correctly (of a man in prison with him).

He was the king of Babylon and God tried to warn the people of Judah the king his servant was coming but they would NOT listen to Jeremiah.

Jeremiah 27:6 And now have I given all these lands into the hand of Nebuchadnezzar the king of Babylon, *My servant*; and the beast of the field have I given him also to serve him.

Check out Daniel 4