After nearly 15 years of relative peace and stability, the citizens of the independent republic of Somaliland insist it is a model African nation - yet the international community has yet to recognise its existence. Shaheera Asante tells the story of Somaliland through the eyes of its people and of the Somali expat community in Wales, many of whom devote themselves to helping their relatives in nurturing the fledgeling state. Producer Roger short