Tifariti - deep in the Western Sahara some 2,000 km south-west of Algiers - is the capital of what people here call the "Liberated Zone". When Morocco annexed Western Sahara in 1975 following Spain's ill-planned decolonisation, they were met with armed resistance from the Polisario Front, the independence movement of the indigenous Sahrawi population.In 1976, the Polisario declared the Sahrawi Arab Democratic Republic (SADR) as their government-in-exile in the eastern portion of Western Sahara under their control. Though the violence ended in a 1991 ceasefire, the Polisario Front continues to demand independence for all of Moroccan-controlled Western Sahara.The United Nations calls it Africa's last colony. Others simply call it "The Forgotten Conflict". It is a land in limbo, not Algeria, not Morocco and not Mauritania, but something in between.Morocco laid up to 10 million mines before the 1991 ceasefire along an immense wall of sand that separates its territory from the Polisario-controlled area to stop anyone from crossing. For the past two years, Landmine Action has been training 12 Sahrawi staff as explosives disposal operators to head the ambitious operation to make the area once again safe for travel.