When the Ministry of Defence was formed in 1964, the Joint Intelligence Bureau, Naval Intelligence, Military Intelligence and Air Intelligence were combined to form the Defence Intelligence Staff (DIS).
Kada je Ministarstvo odbrane formirano 1964. godine, JIB, pomorske obaveštajne službe, vojno-obaveštajna služba i obaveštajna služba vazdušnog saobraćajaa su kombinovane da formiraju Obaveštajnu jedinicu odbrane (DIS).