θɹˈiːhˈʌndɹɪd ˈeɪɾi wˈʌn ˈɛks ɪz ɐn ˌɛkspədˈɪʃənˌɛɹi kˈɑːmbæt səpˈoːɹt skwˈɑːdɹən ʌvðə ɹˈɑːf fˈɔːɹmd æt ɹˈɑːf wˈɪljəmtˌaʊn, ˌɛnˌɛsdˈʌbəljˌuː ɪn mˈeɪ nˈaɪntiːnhˈʌndɹɪd nˈaɪnti ˈeɪt.
381ECSS is an expeditionary combat support squadron of the RAAF formed at RAAF Williamtown, NSW in May 1998.