The Union of Shop, Distributive and Allied Workers (USDAW) is a trade union in the United Kingdom. It has over 341,000 members, the majority of whom are shop workers and has a reputation as one of the less militant unions, rarely organising industrial action. The union was formed in 1947 by the merger of the National Union of Distributive and Allied Workers and the National Union of Shop Assistants, Warehousemen and Clerks. There is also a managerial and supervisory section called Sata - the Su… (More on Usdaw)