The conversation between human and AI assistant.
How does Sauron's power compare to that of Morgoth?
Did they ever fight each other directly?
There is no record of a direct confrontation between Morgoth and Sauron in the lore of Middle-earth. Morgoth was defeated by the combined forces of the Valar and the Elves at the end of the First Age, while Sauron was defeated by the forces of the Free Peoples of Middle-earth at the end of the Third Age.