This series consists of war diaries for British and colonial units serving in theatres of operations between 1914 and 1922, including Russia, at home, and in the colonies, and British military missions, and Armies of Occupation between 1919 and 1922. No diaries for the campaign in South West Africa in 1914-1915 are included in this series because no British units participated; operations were conducted under the auspices of the South African armed forces.
The diaries contain daily reports on operations, intelligence summaries and other pertinent material. The range of dates shown for individual items does not mean there is a document inside the file for each day between the two covering dates.
Please note: Selected First World War war diaries have been scanned as part of The National Archives' ongoing initiative to digitise some of our most frequently ordered original documents. Digital copies can be searched and downloaded.