Zeus, now grown, forced Cronus (using some unspecified trickery of Gaia) to disgorge his other five children. Zeus then released his uncles the Cyclopes (apparently still imprisoned beneath the earth, along with the Hundred-Handers, where Uranus had originally confined them) who then provide Zeus with his great weapon, the thunderbolt, which had been hidden by Gaia. A great war was begun, the Titanomachy, for control of the cosmos. The Titans fought from Mount Othrys, while the Olympians fought from Mount Olympus. In the tenth year of that great war, following Gaia's counsel, Zeus released the Hundred-Handers, who joined the war against the Titans, helping Zeus to gain the upper hand. Zeus cast the fury of his thunderbolt at the Titans, defeating them and throwing them into Tartarus, with the Hundred-Handers as their guards.