The week-long visit back home was rather needed given recent events. I walked across the entire desert in my bloodied robes, soaking in the fact that I actually killed someone, and it didn't even set in with that fact until like a day later. First person to see me in that squalor was my sensei, he saw me in the bloodied robes and outright understood what went down. He once again shared his grand wisdom to me in the form of a tale from the age of clan wars, one now burned into my brain.
It was both their way of life, and their way of preserving their way of life, their life choices, how many soldiers do you think came away questioning if they did right or wrong? In their eyes, they were doing what their tribe needed, for land, food, water, revenge, to defend their families. You will find your adversaries do much the same, though they may not call themselves a tribe, their actions are indicative of it.
They chose to fight you, rather than surrender, to ambush you, to cause harm to you and others. Words may not have reached them, it is likely they won't have much effect, and scaring people away may not always work, if they fear betraying their tribe more
That does not mean you should not try, but instead, when your are asked to chose, to fight or to let live, remember, they chose their path like you have chosen yours. and they will continue to walk it.