I will put an exception right at the top of this post. If you're drafted, most of what I say here does not apply.
Why support a volunteer soldier?...
....A volunteer soldier signs up to be an agent of the state's war machine. In doing so, he/she allows the state to demand him/her to kill another human being.
Even to allow oneself to be drafted is a choice. When I faced that in the 1970s, with a draft lottery # of 34 I had options:
be drafted, enlist, ROTC, prison, moving to Canada, CO status. Weighing these all carefully, I was leaning towards Canada
until Nixon canceled the draft. But I would never submit to the draft, which I saw as wasteful, unconstitutional & an unfair burden.
I'm a non-aggressionist, but I see defense as necessary. After the draft scare, I spent some time designing military weapon systems.
I don't believe that an individual soldier is responsible for the greater evil of said war machine, but the willingness to do exactly what that entity demands nullifies their innocence. In the modern war era, the soldier is aware of what he/she is getting into.
I say they are responsible for the larger effects of the military since they made the choice to be in it. But I'm sure they made this choice believing that
the good they'll do will outweigh the bad. War is messy. Even in the most just war, evil things will happen. It's avoidable, but not possible to eliminate.
I see being a soldier as an ethical choice, albeit a problematic one at times.
Being in the United States, I am surrounded by Christian war-culture, but I have yet to hear a solid argument for what I hear termed a 'just war'. It is simple:
If killing is wrong in one case, it is wrong in all cases.
Whatever security pacifists have, they owe to the non-pacifists prepared to defend them.
I wouldn't be so quick to call all war wrong. Should we have let Hitler & Tojo win?
A question:
Is it moral to pay taxes, given that this enables America's deadly foreign meddling?
Sure, this is more passive than serving as a soldier, but even to be passive is a decision.