Volume 1 of the Helion Order of Battle series. This book provides a complete guide to the organisation of the British and Commonwealth armies in the years 1939-1943, with six chapters covering all the main theatres of war - North West Europe (including the Home Front) 1939-1943; North Africa; Middle East, Central and East Africa; Mediterranean; Far East, Australasia and India; and Special Forces (all theatres). Tables of Organisation and Equipment (ToEs) are given for all major and many minor formations in each theatre of war - from armoured brigades and divisions in North Africa to the British Habforce in Iraq and Syria, the Indian 50th Airborne Brigade in Burma and the indigenous defence forces in the Pacific Islands. All organisations are analysed down to section level where possible; the listings specify the types of equipment and weapons used and include explanatory notes. The information is clearly presented in a user-friendly format and contains a wealth of hard-to-find data. Notes for wargamers are also included.