To handle other forms of intelligence, Blamey and MacArthur created the Allied Intelligence Bureau (AIB). This included the Services Reconnaissance Department with its Z Special Unit that carried out special operations like Operation Jaywick; Secret Intelligence Australia; the Coastwatchers, who watched for Japanese aircraft and ships from observation posts behind Japanese lines; and the propaganda specialists of the Far Eastern Liaison Office (FELO). Two other important combined organisations, not part of AIB, were the Allied Translator and Interpreter Section (ATIS), which translated Japanese documents, and the Allied Geographical Section, which prepared maps and charts, and drafted appreciations of the terrain.