Which anime has a scene where a solider sees a little girl singing?

It was an anime I briefly seen when I was a kid, and I can't find it on the web.
Update: In that scene, a solider in samurai armor was standing over a field of dead soldiers/men, and sees a little girl singing, and playing with a ball in a creepy kind of way.
Update 2: P.S. I'm sorry, if I'm not being accurate here, but it's all I can remember.
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