The Five Eyes are the US, Britain, Australia, Canada and New Zealand, whose secret services collaborate closely and share information.
|Country||Signals intelligence||Defence intelligence||Security intelligence||Human intelligence|
|United States||National Security Agency (NSA)||DIA||FBI||CIA|
|United Kingdom||Government Communications Headquarters (GCHQ)||DIS||MI5||MI6|
|Australia||Defence Signals Directorate (DSD)||DIO||ASIO||ASIS|
|Canada||Communications Security Establishment Canada (CSEC)||CDI||CSIS||CSIS|
|New Zealand||Government Communications Security Bureau (GCSB)||DDIS||SIS||SIS|