On 16 January 2008, Peru instituted proceeding before the International Court of Justice (ICJ) regarding a maritime dispute with its neighbour Chile. Peru asks the ICJ to define the maritime territorial boundary between Peru and Chile.
The dispute is in relation to the delimitation of the boundary between the maritime zones in the Pacific Ocean of the two states, beginning at a point on the coast called Concordia, the terminal point of the mutual land boundary established pursuant to the Treaty of 3 June 1929. The dispute also deals with the recognition in favour of Peru of a maritime zone lying within 200 nautical miles of Peru’s coast, which Chile considers to be part of the high seas. The attribution of sovereignty over the zone will have consequences mainly regarding fishing in the area.