Aragorn can't defeat Sauron, though, and he knows it. His role in the final victory is to distract Sauron, who assumes that the ring will be used against him by

Aragorn can't defeat Sauron, though, and he knows it. His role in the final victory is to distract Sauron, who assumes that the ring will be used against him by a "somebody" like Aragorn, rather than destroyed by nobodies.