Before and during the War of the Ring, Gwaihir rescued Gandalf the Grey from the top of Isengard—having been dispatched by Radagast—and again from Zirakzigil. The Eagles aided troops of King Elessar at the Battle of the Morannon at the Black Gate. The Eagles arrived in time to overthrow some Nazgûl. Gwaihir, with others of his people, rescued Frodo Baggins and Samwise Gamgee from Mount Doom in Mordor after the One Ring had been destroyed.
After the events of the War of the Ring the Great Eagles departed Middle-earth.