Gilneas (pronounced Gil-neigh-uhs) is a human nation and kingdom located in the peninsula that lies to the southwest of Silverpine Forest on the continent of Lordaeron. The kingdom was founded following the splitting of Arathor and is ruled by the House of Greymane. Besides the peninsula, the kingdom also included the island of Zul'Dare.
Gilneas is a large peninsula that juts into the sea south of western Lordaeron. Silverpine Forest lies to the northeast and Kul Tiras awaits across the sea to the south. King Genn Greymane never supported the Lordaeron Alliance in the Second War. Thus, after the war, he constructed the Greymane Wall: a massive barrier spanning the entire northern border. The enormous wall barricades Gilneas from Lordaeron. Gilneas does not allow anyone in or out, and because of this no one knows what has been transpiring there since the end of the Second War.
It was later found that the Worgen curse swept mercilessly across the nation, turning many of its inhabitants into savage beasts. However, they were able to get their humanity back and rebuild the land. Following the Cataclysm and an invasion by the Forsaken, Gilneas rejoined the Alliance.