there is speculation, but no proof of, off-shore oil – the war prevented any serious exploration efforts. It remains mostly unexplored and unexploited to this day. The exception is the rich Atlantic fishing waters. They were never put to use by Mauritania, but have since been fished by Morocco and foreign ships under Moroccan licenses. The name "Tiris" refers to a desert plain of the Sahara. Mauritania's northernmost province (in its internationally recognized territory) is similarly called Tiris Zemmour, where "Zemmour" refers to a mountain range in central Western Sahara. The Ould Daddah government's claims to the territory was based in the strong cultural and tribal ties between the Moorish inhabitants of Mauritania, and the tribes of Western Sahara. The government argued they were all part of the same people, and also put forth the notion of pre-colonial sovereignty by certain Mauritanian emirates (tribal fiefdoms) over some of these tribes. Before of the International Court of Justice, Mauritania claimed in 1975 that the entire Spanish Sahara had historically constituted part of "Bilad Chinguetti", which it argued had been an undeclared tribal and religious community. But it also recognized that there had never been a Mauritanian state to claim the territory, since Mauritania itself was a modern-day creation of French colonialism. The court recognized the importance of these cultural links, but announced that they had not constituted sovereignty over the territory or its inhabitants before colonialism, and could not by themselves justify sovereignty today. Instead, it recommended a standard self-determination process where Sahrawis were given the choice of merger with Mauritania and/or Morocco, or independence. Present Mauritanian position In later years, the Mauritanian government has maintained a policy of strict neutrality between Polisario and Morocco, while retaining its recognition of the SADR. Minor parts of the Mauritanian political opposition will occasionally express interest in the area, although direct advocacy for retaking it is very rare. Other groups support either Polisario or Morocco. The official position of most parties is to support any outcome acceptable to both remaining sides of the conflict, and that has also been the government's position since the late 1980s, even if it has varied in tune with relations with Morocco. The territory is now effectively divided between Moroccan and Polisario forces along the length of the Moroccan Wall, and with a cease-fire in effect pending the outcome of the United Nations decolonization process. See also Free Zone