Medieval Japanese War

I was in Japan, and I was in this valley that was between to heavily wooded mountains, but the valley itself was not wooded. It had lots of rolling hills and rocks, but no trees on the floor of the valley. There was a big war going on, or rather, it was SUPPOSED to be going on. It seemed that there was a tense hiatus where not a lot was happening.

I don't remember everything that was going on, but there was something about a woman and her daughter. The woman was about 45 or so, and the daughter was closer to my age (25 or so) I remember that there was something about them that was evil to me. They were trying to ambush or sabotage me in some way, but I don't remember how. I walked down to the south end of the valley, and they were near me a lot of the time. I was keeping my eye on them to make sure that they didn't do anything to me. I was also looking for a chance to strike at them when they didn't expect it.

Finally at one point when we were down at the far end of the valley, and all the other warriors had gone into hiding on opposite sides of the valley in the trees, I turned quickly, and the swords/knives that I had were somehow spinning like helicopter blades. I thrust forward and I caught the woman under the ribs on her left side. I remember the feeling of pushing the blade in. I think I also got the daughter with the other one, or I did it right after impaling the mother. It was almost as if neither one really seemed phased by this. They weren't doing much of anything but watching me as I did it.

I realized that I hadn't killed them, and so I stabbed at them both again. I got them again in roughly the same places, and still not much of anything was going on with them. I suddenly had a feeling that I had messed up really badly, and these women weren't evil after all. I felt a huge wave a guilt, and rather than help them at this point, I felt it was better to finish them off. I didn't want them to remember, and I didn't want to have to admit I had been wrong in attacking them. I took more stabs at them, but the dream ended before either of them were dead.