table of contents foreword i acknowledgements iii v list figures xi tables xv executive summary xix background aim the scan 2025 presentation information xx future australian security situation demography xxi workforce society xxii economy personnel issues xxiii education health xxiv climate change xxv energy xxvi water workplace xxvii defence implications xxix conclusions xxxi part 1 introduction 3 australia s challenges for next 20 years 4 6 objectives organisation report and supporting 7 method 2 9 current profile 11 overview adf 14 force reserves 16 aps 18 age composition 19 employment levels recruitment retention 22 cadets 24 environment scane 27 recruiting performance 29 generation y research 30 ages stages careers 31 lifestyle 37 gender cultural