When the First World War started in August 1914, Ware attempted to join the British Army but was rejected because he was too old. With the assistance of Alfred Milner, he obtained an appointment as the commander of a mobile ambulance unit provided by the British Red Cross Society. In this role he began marking and recording the graves of those killed. The unit soon began to focus exclusively on graves, and the organisation was transferred to the British Army in 1915. The following year the Army Department of Graves Registration and Enquiries was created with Ware at its head. On 21 May 1917 the Imperial War Graves Commission was founded. Ware served as vice-chairman. He ended the war as a major-general, having been mentioned in despatches twice.
IMMORTAL HERITAGE An Account Of The Work And Policy Of The Imperial War Graves Commission During Twenty Years 1917-1937
This book embodies the report presented to the Imperial War Graves Commission by Sir Fabian Ware,It is a record of remarkable achievement and a reminder of the toll taken by the Great War on the generation that faced it. The dead of the British Empire number over a million, over half that number lie identified in graves provided by the IWGC (767,978) at the time of original publication of this book). The book has a touching preface by Edmund Blunden and is Illustrated with photographs of different cemeteries.