Formed on 1 October 1942, as Security Guard Unit RAAF (SGU) at Livingstone Airfield, Northern Territory, Australia.
fˈɔːɹmd ˌɔn wˈʌn ɑːktˈoʊbɚ nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi tˈuː, æz sᵻkjˈʊɹɹᵻɾi ɡˈɑːɹd jˈuːnɪt ɹˈɑːf ˌɛsdʒˌiːjˈuː æt lˈɪvɪŋstˌoʊn ˈɛɹfiːld, nˈɔːɹðɚn tˈɛɹɪtˌoːɹi, ɔːstɹˈeɪliə.