Well...research it. It's quite fascinating.
I'm VERY active in the mission field, so have watched this for years. I know personally not one missionary that has even considered guns in their work for the Lord. None.
I understand "live by the sword, die by the sword' And that is different than having the ability for defense at hand-and not using it. Living by the sword could be considered a soldier or a mercenary. The fact that Peter (and any of the other disciples) had a 'sword' (weapon of the day) in the Lord's presence is pretty significant I think. Is there a lesson there about abstaining from the use of available power? Absolutely. Was not Christ on the cross the same type of example? He had the power to defend Himself before during and after the crucifixion and chose not too-for our benefit. He was never a victim.
You take away the ability to protect yourself, and now you become a victim, not a sacrifice. Two different statuses.