Last Alliance of Men and Elves

Last Alliance of Men and Elves was one of the causes of the War of the Ring

The Battle of Dagorlad
In a flashback, the Last Alliance was forged between men and elves who wished the end of Sauron's reign. During the battle, Elendil, one of the leaders was killed by Sauron. Isildur, the king's son took up his father's broken sword and sliced off the figner holding the One Ring. Elrodn comes to Isildur and demands he throws it into Mount Doom. However, Isildur refuses and keeps the Ring for himself.

Appearances

 * The Lord of the Rings: The Fellowship of the Ring (first appearance)
 * The Lord of the Rings: The Return of the King (flashback)
 * The Hobbit: An Unexpected Journey (depicted in painting)