I understand all you say. I was looking for scripture that says that. (Two good men fighting on the field of battle against one another and both believers in God; They both die from wounds the other inflicted. Is there scripture that helps the living understand it and does God speak of it through his word.)
My friend, I'm giving you the scripture. We reap what we sow. So what was in the hearts of the two soldiers you described?
God knows.
God instituted such organizations as governments, militaries, etc. for the oversight and protection of its' citizens,
For he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to
execute wrath upon him that doeth evil. Rom.13:14
Please understand, this doesn't mean there aren't bad leaders, soldiers, police officers, etc, but we will all give account for whatever God lent us.
So, 2 soldiers with the mind to protect, but then 1 started hating "those people." No matter...
Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap. Gal.6:7