Wolves were of old allied with the Dark Lord, and were often used as steeds by the Orcs. Wolves, or creatures in wolf-shapes, first came to Beleriand over mountain passes or through dark forests alongside other fell creatures during Melkor's third age of captivity.
During Fingolfin's suicidal duel with Morgoth, his body was broken and cast to great wolves of Angband, only for Thorondor to take the body away for burial. Rochallor stayed with Fingolfin until his death. Yet when he was assailed by the great wolves, the great steed escaped an immediate death by outrunning them due to his swiftness only to die when his heart broke upon coming to Hithlum.
When Sauron took over the isle of Tol Sirion, he built a watch-tower upon it and renamed the isle to Tol-in-Gaurhoth, and becoming the "Lord of Werewolves". These werewolves of Angband were bred from the great wolf Draugluin. Of which, Carcharoth was said to be the greatest of those descended from him.
When Sauron took over the isle of Tol Sirion, he built a watch-tower upon it and renamed the isle to Tol-in-Gaurhoth, and becoming the "Lord of Werewolves". These werewolves of Angband were bred from the great wolf Draugluin. Of which, Carcharoth was said to be the greatest of those descended from him.
When Gorlim was deceived into betraying Barahir, he heard wolf howls when the deception was unmasked and Sauron revealed himself.
When Sauron had sent many wolves into the Talath Dirnen, Celegorm and Curufin took their wolf-hounds, of whom Huan was their chief, and hunted the wolves down. It was said that Huan would meet his end upon encountering the greatest wolf to walk upon Arda.
When Huan and Lúthien assailed Sauron's watch-tower, they were met with an army of wolves which Sauron sent to attack them on the bridge one by one before sending Draugluin himself, only for him to be also be killed by Huan. After his death, Sauron decided to take on the form of the mightiest wolf in order to fulfill the prophecy of Huan's death, but failed and yielded Tol-in-Gaurhoth.
Wolves were among the creatures that fought for Morgoth during the Nirnaeth Arnoediad, after which, they moved freely alongside Orcs into Beleriand as far southwards as Nan-tathren and Ossiriand.
Wolves were among the Orcs that were holding Túrin captive. Four of these Wolf-sentinels were shot by the Elf, Beleg, to free his friend.
Wolves were among the forces that Morgoth used to assail the city of Gondolin.