I've been wanting to join for about 6 months now. At this point i'm certain i want to join, so i told my parents. My mum is fine with it (albeit a little apprehensive), but my dad's been chewing my ears off saying i'm just 'cannon fodder' etc. It doesn't change my mind but i'm 15 and i plan on joining at 17, so i don't really want a year and a half of this. Any thoughts on how to convince him?