TSK · Daniel 10:13

and hired counselors against them, to frustrate their purpose, all the days of Cyrus king of Persia, even until the reign of Darius king of Persia.

Then he said, "Do you know why I have come to you? Now I will return to fight with the prince of Persia. When I go forth, behold, the prince of Greece shall come.

He showed me Joshua the high priest standing before the angel of Yahweh, and Satan standing at his right hand to be his adversary.

and in him you are made full, who is the head of all principality and power;

who is at the right hand of God, having gone into heaven, angels and authorities and powers being made subject to him.

There was war in the sky. Michael and his angels made war on the dragon. The dragon and his angels made war.