Battle of the Seasons

The Battle of the Seasons was the final battle to end the First War. Melkor and his forces fought a reinforced Aniur army, while the Spirits of Arda and Corrupted Spirits clashed in locations around the world. Melkor sent the Nameless to sow Aule pain and help him in his conquest of Arda. Coming to the aid of the Valar and Arda was Tulkas, who lent his strength to Arda and Aule.

As Melkor tried to create discord in the foundations of Arda--Tulkas lent his aid to the Valar, a great battle was fought, and it ended with Melkor retreating to the Void, his forces in hiding, and Ungoliant abandoning him. The Valar established the foundations of the world and the Spring of Yavanna would take place. Arda would know peace for thousands of years.