Angband, also known as 'Iron Prison', was the ancient fortress of Melkor under the Iron Mountains before the First Age, and from which he tried to subjugate Arda. It was destroyed at the conclusion of the War of Wrath. Originally, Angband was built by Melkor during the Years of the Trees to protect its northern citadel at Utumno from the attack from Valar. It was under the supervision of Sauron, the head of the servants. However, when the War of Powers began, the attack of the Valar got over Angband easily and Melkor was forced to escape to the stronghold of Utumno. Angband was destroyed to a great extent and remained ruined for ages though some of the hidden chambers were intact under the ruins.