I think "soldiers who fight for money" should be the only soldiers in today's world. What can be more hideous than forcing people to fight, to kill others?

Only those who want to fight should join the military, only volunteers.

 Do soldiers who fight for money deserve to live? Of course they do! Also, they deserve all the respect and more, because they fight against barbarian regimes of modern times. Many of them would do it even for free. Money is just a bonus for them.
 
 And I disagree with @OgNasty on that we don't need an army in today's society. We do need it, mate. Unfortunately, we still need it badly.