Could I as a non-miltary person ........broaden the arument . You are in the Uk military you are technically "outlaws" ie you are outwith the laws which apply to non-military UK civilians and you are voluntarily so .......governed by Queen's Regulations . You therefore have no "moral existence"......you exist as a legal entity defined by Queen's Regulations and nothing more. Don't believe me......well the Nuremberg " I was only obeying orders" defence didn't hold up .
So you know that before you join ( or you should) so the argument that "I'm not going to do that someone could get killed " doesn't hold water. You rely on people higher up the chain of command for moral judgements ......just don't try it on your own........Victorian or Feudal...? take your pick!!!!!!!!!
Good luck and thanks to you all especially during the difficult months ahead .