SENEGAL will open a consulate in Western Sahara tomorrow, joining other African and Arab countries in supporting Morocco's claim to the disputed territory, two official sources said. The consulate will be opened by the Moroccan and Senegalese foreign ministers in the Atlantic city of Dakhla, making Senegal the 22nd nation to establish a diplomatic mission in the territory, the sources said. The Algeria-backed Polisario Front seeks independence for Western Sahara, a vast desert region held by Morocco since Spain withdrew in 1975. Morocco has long sought international recognition of its claim to the region it calls its "southern provinces". The…