Databases

Declassified Documents Online: Twentieth Century British Intelligence: Monitoring the World brings together files from two UK government departments to provide researchers with access to detailed, previously classified information on the intelligence services of Britain throughout the twentieth century. Material has been sourced from the Cabinet Office and the Government Communication Headquarters (GCHQ) to illustrate the worldwide inception and global reach of British security agencies from the First World War through to the interwar period, the Second World War, the Cold War and the era of decolonization.