The Ministry of Defence (MOD) has, for some time, been considering the release of World War 2 (WW2) Royal Air Force (RAF) casualty packs to the National Archives. There is no administrative reason for these records to be retained and, under the terms of the Public Records Act 1958, the National Archives has agreed to accession those records related to RAF combat losses for permanent preservation. These records amount to approximately 20,500 files in total. Each file relates to an aircraft and all casualties associated with the aircraft are recorded on that file. Those records not related to battle losses,approximately 35,500 files,will be kept by the MOD for further review in advance of any disposal decision.