The Irish Military Archives has been the official place of deposit for records of the Irish Defence Forces, the Department of Defence, and the Army Pensions Board since 1990, as defined in the National Archives Act, 1986. They collect material from the foundation of the State up until the present day, including records from overseas missions. From as early as 1924, the National Army, recognising the importance of the War of Independence, undertook to preserve historical documents from that time. Some of the earliest collections preserved by the Historical Section include the Collins Papers, Civil War Operations and Intelligence files and Captured Documents (Civil War up to 1925), which continue to be made available today.