This is a brief guide to researching British government and military records of the Second World War. Second World War records are wide-ranging and are kept in a variety of archives. This guide will help you gain a general overview of the main sources of the information that exists, and where to find it. This guide is for people interested in the subject of the Second World War. If you are looking for a person’s Second World War service records, these are still held by the Ministry of Defence. Visit the Veterans UK website for further information.
What records can I see online?
Allied Expeditionary Force papers (1943-1945)
Browse copies of documents from the Supreme Headquarters Allied Expeditionary Force and 21 Army Group, relating to a variety of headquarters responsibilities (WO 229). These are available to as digital microfilm in Discovery, our catalogue.
Cabinet papers (1915-1978)
Search records of the Cabinet Office for documents concerning decisions and discussions before, during, and after the Second World War.
What records can I find at The National Archives at Kew?
British army unit war diaries (1939-1945)
Consult section 5 of the research guide British Army operations in the Second World War for information on how to search British Army unit war diaries for the Second World War.
Government and military records
Search and browse the following departments to gain an overview of government and military records for the Second World War:
- War Office (WO), Admiralty (ADM) and Air Force (AIR) – this is where most armed forces and general war records will be found
- Foreign Office (FO) – correspondence, policy and negotiation with other states
- Prime Minister’s Office (PREM) – mainly correspondence to and from the Prime Minister’s office
- Home Office (HO) – this series focuses on domestic and internal affairs
To access these records you will either need to visit us, pay for research (£) or, where you can identify a specific record reference, order a copy (£).
What records can I find in other archives and organisations?
Service Records (1920-present)
Visit the Veterans UK website for information about how to request a summary of a service record from the Ministry of Defence. These are not available to members of the general public, but next of kin may request access to them.
Wartime diaries and personal papers (1939-1945)
Visit the Imperial War Museum website for information on how to access records in their document archive and on the various collections held by the museum relevant to the Second World War.
What other resources will help me find information?
Did you know?
There are many records covering conflicts and wars at The National Archives. Try searching our catalogue with a specific term, name or subject to help focus your search.
The most popular records on the subject of the Second World War at The National Archives are within departments WO, HO, PREM and FO.
There is likely to be some overlap between separate departments on any given subject. For example, a decision made during the Second World War may have been informed by the Foreign Office (FO), discussed by the Cabinet (CAB) and Prime Minister (PREM), and then carried out by the Army (WO), Navy (ADM) and RAF (AIR).
Please note, if you are looking for service records of individuals who fought in the Second World War please visit Veterans UK.