The senior RAOC appointment was Director Equipment and Ordnance Stores (DEOS) − always a Major-General − which during the 1920s became Director Ordnance Services (DOS). DOS was also a title given to senior RAOC officers at major commands such as Middle East Command, 21st Army Group and in more recent times BAOR. After the Somerville Logistic Reorganisation Committee Report of 1977 the head of the corps was re-titled Director General Ordnance Services (DGOS). Following the huge expansion of the RAOC in the Second World War the senior RAOC major general was designated Controller Ordnance Services (COS) from 1942 to 1948