The Allied Intelligence Bureau (AIB) was a joint United States, Australian, Dutch and British intelligence and special operations agency during World War II.
[1] It was responsible for operating parties of spies and commandos behind Japanese lines in order to collect intelligence and conduct guerrilla warfare against Japanese forces in the South West Pacific.
The AIB was formed in June 1942 to coordinate the existing Allied propaganda and guerrilla organisations.
At its peak the AIB contained men from ten individual services and controlled or coordinated eight separate organisations.
"[citation needed] One member of the AIB was Alfred Deakin Brookes, who went on to become the first head of the Australian Secret Intelligence Service in May 1952.