The Peace Agreement is an event mentioned in The Legend of Zelda: Phantom Hourglass. It is a treaty between the Anouki and Yook tribes that was agreed upon 100 years prior to the events of the game. The Peace Agreement splits the Isle of Frost into two regions, with the Anouki owning the nicer, western section of the island, and the Yook controlling the harsh Great Ice Field on the eastern side of the island.