The SASR draws on the experiences of Z Special Unit, M Special Unit, the Independent Companies and the Coastwatchers which operated in the South West Pacific Area against the Japanese during World War II. These units had been disbanded soon after the war as part of the demobilisation of the Australian military; however, after observing the operations of the British Special Air Service during the Malayan Emergency in the 1950s the Australian Army decided to raise its own SAS unit. The 1st Special Air Service Company was established on 25 July 1957 at Swanbourne, a suburb of Perth, Western Australia, with a strength of 16 officers and 144 other ranks.