I don't know anyone in the army, and count myself a a pacifist.
However, YABVU. You say we are not under direct threat. Well, even if this is true (which, let's be fair, is open to debate given our experience of recent terrorist attacks
), you presume that it will always be this way.
To my knowledge, every nation has security forces. We have the police (for day to day societal security of you and I) AND the other forces which are designed to protect a nation from outside threat (to include terrorism).
We may only be under threat from terrorist attacks at the moment, but what would happen if our national borders, way of life, freedoms and liberties came under fire as they have done in the past? Who would you count on to be first in the line of fire?
Which other nation's loved ones would you be hoping would feel a moral obligation to come and help restore humanitarianism, even if their own nation were not at risk?
People in the forces sign up to fight in any eventuality. Which could include being on 'our' territory as well. They understand the dangers. So do I. That is one of the reasons I am not in the forces.
No matter what I feel about current conflicts, or how glad I am that my husband does not have an increased chance of coming home to me maimed or worse, I am grateful that someone else feels strongly enough to risk their lives, and aware that their love ones must understand this. I think they are entitled to feel proud.
Or let me put it another way:
I wouldn't risk my life for you, OP. They would. Define that as you will.