First War

The First War was a string of battles before the formation of Arda. Melkor led his rebellious Maia against the host of the Valar. Under command of Manwe and twelve other Valar, Melkor stood against all thirteen by himself. Melkor at this time did seduce Osse and Sauron, and they served as great generals to him besides Fluithuin, Ungoliant, Langon, Gothmog and many more Umaiar. While the Valar boasted Eonwe, Olorin, Curumo, Tilion, Alatar, Uinen, Makar, Measse, Arien, and many more Maia as well. The wars are not recorded, but it is conceivable that Morgoth's forces were probably one third of Eru's forces.

The war went on until Valian Year 1499 where Tulkas came down and made Melkor flee through the Gates of Morning. The rest of his forces fled as well and hid until Melkor's return.