This book offers a complete guide to the organisation and order-of-battle of British & Commonwealth armies during the years 1939 to 1943. The five chapters cover all main theatres of war - Europe incl. the Home Front; North Africa; East & West Africa, and the Middle East; the Mediterranean; the Pacific & Far East. T.o.E.'s (Tables of Organisation & Equipment) are given for all main and many minor types of formations in each theatre - from armored brigades and divisions in North Africa, to Egyptian home defense forces 1939-42, British Force 121 in Magadagascar 1942, and Indian infantry units in Iraq and Persia during 1940-41.

Some of the formations covered include
ARMOURED FORMATIONS - armoured divisions, tank brigades, independent armoured units
INFANTRY FORMATIONS - infantry divisions, territorial/lines-of-communication divisions, infantry brigades, motorised brigades
OTHER FORMATIONS - airborne divisions, anti-aircraft divisions, cavalry divisions, parachute brigades, cavalry brigades, home defence forces including the Home Guard and Australian militia, significant garrisons (including Crete, Singapore and Hong Kong), corps and army support elements, ad hoc formations (e.g. Habforce, Force 121), comprehensive coverage of special forces.