It takes Mohammed Hanzali 48 hours to get home to Laayoune, in the disputed territory of Western Sahara. Starting from Dakar, the capital of Senegal, he drives nearly 2,000km (1,243 miles) along Africa"s north Atlantic coast. The 36-year-old Sahrawi – an ethnic group native to the western part of the Sahara desert – manoeuvres his truck full of tomatoes, onions, potatoes and mangos around potholes, onto ferries, across rivers, and through traffic jams at international borders.