War of the Elves and Sauron

J. R. R. Tolkien's Middle-earth fantasy writings include many wars and battles set in the lands of Aman, Beleriand, Númenor, and Middle-earth. These are related in his various books such as The Hobbit and The Lord of the Rings, and The Silmarillion, Unfinished Tales and other posthumously published books edited by his son Christopher Tolkien.

These are given below in an in-universe, fictional chronology:

The Kinslayings are the collective term for the three battles fought between the Eldar.

The first battle, the Kinslaying at Alqualondë (Swanhaven), appears in print in The Silmarillion. It involves the Noldorin Elves under their king, Fëanor, against their fellow Elves, the Teleri.

Against the will of the godlike Valar, Fëanor had induced the Noldor to leave Valinor to make war upon the Dark Lord Morgoth in revenge for the murder of his father Finwë and the theft of his Silmarilli jewels. As the easiest route to Middle-earth was by sea, Fëanor and his sons led one host of the Noldor to the city of Alqualondë and asked the seafaring Teleri of Alqualondë for their vessels. The Teleri refused to help them defy the Valar. Bitter fighting broke out (although it is not clear who began the fighting, the Silmarillion states that fighting began when the Noldor attempted to take control of the Teleri's ships) and eventually many (perhaps hundreds) of Elves on both sides were slain. Though the Teleri were lightly armed, they were able to defend themselves to some degree until a second host of the Noldor, led by Fëanor's half-nephew Fingon, arrived together with some of his father Fingolfin's people. Fingon's people assumed erroneously that the Teleri had attacked the Noldor under orders of the Valar. In the end, many of the Teleri were slain and the ships taken. Afterward, the sea rose and destroyed many of the boats to punish the Noldor for this cruel act. Though the Teleri forgave the Noldor by the end of the First Age of Middle-earth, they still refused to fight in the War of Wrath. All Elves that followed Fëanor and continued towards Middle-earth fell under the Doom of Mandos.

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