sentences:  Durrani could prevail on Gen Zia because he had been his most trusted military secretary.Indeed, after Gen Zia's death, Begum Zia continued to repose trust in Gen Durrani, as narrated in "Khaki Shadows" by General Khalid Mahmud Arif the Chief of Staff (COS) under Zia, published in 2001.From 1992 to 1998, Durrani was the chairman of the Pakistan Ordnance Factories Board.